711408 has 20 divisors (see below), whose sum is σ = 1837928. Its totient is φ = 237120.

The previous prime is 711397. The next prime is 711409. The reversal of 711408 is 804117.

It is a super-2 number, since 2×711408² = 1012202684928, which contains 22 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711409) by changing a digit.

711408 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7363 + ... + 7458.

2⁷¹¹⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

711408 is an abundant number, since it is smaller than the sum of its proper divisors (1126520).

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

711408 is a wasteful number, since it uses less digits than its factorization.

711408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14832 (or 14826 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 711408 is about 843.4500577983. The cubic root of 711408 is about 89.2701466496.

The spelling of 711408 in words is "seven hundred eleven thousand, four hundred eight".