711432 has 48 divisors (see below), whose sum is σ = 1981980. Its totient is φ = 230400.

The previous prime is 711427. The next prime is 711437. The reversal of 711432 is 234117.

It is an interprime number because it is at equal distance from previous prime (711427) and next prime (711437).

It can be written as a sum of positive squares in 2 ways, for example, as 695556 + 15876 = 834^2 + 126^2 .

It is a super-2 number, since 2×711432² = 1012270981248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 711432.

It is not an unprimeable number, because it can be changed into a prime (711437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2832 + ... + 3072.

2⁷¹¹⁴³² is an apocalyptic number.

711432 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 711432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (990990).

711432 is an abundant number, since it is smaller than the sum of its proper divisors (1270548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

711432 is a wasteful number, since it uses less digits than its factorization.

711432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 287 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 711432 is about 843.4642849582. The cubic root of 711432 is about 89.2711505084.

Adding to 711432 its reverse (234117), we get a palindrome (945549).

The spelling of 711432 in words is "seven hundred eleven thousand, four hundred thirty-two".