711427668 has 72 divisors (see below), whose sum is σ = 1958330304. Its totient is φ = 200390400.

The previous prime is 711427667. The next prime is 711427741. The reversal of 711427668 is 866724117.

It is a super-2 number, since 2×711427668² = 1012258653591836448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711427667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33228 + ... + 50268.

It is an arithmetic number, because the mean of its divisors is an integer number (27199032).

Almost surely, 2^711427668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 711427668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979165152).

711427668 is an abundant number, since it is smaller than the sum of its proper divisors (1246902636).

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

711427668 is a wasteful number, since it uses less digits than its factorization.

711427668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17133 (or 17124 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 711427668 is about 26672.6014479278. The cubic root of 711427668 is about 892.7096931354.

The spelling of 711427668 in words is "seven hundred eleven million, four hundred twenty-seven thousand, six hundred sixty-eight".