396716539624 has 16 divisors (see below), whose sum is σ = 743993162820. Its totient is φ = 198318362880.

The previous prime is 396716539589. The next prime is 396716539627. The reversal of 396716539624 is 426935617693.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 343609337124 + 53107202500 = 586182^2 + 230450^2 .

It is a super-2 number, since 2×396716539624² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (396716539627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4946097 + ... + 5025664.

Almost surely, 2^396716539624 is an apocalyptic number.

It is an amenable number.

396716539624 is a deficient number, since it is larger than the sum of its proper divisors (347276623196).

396716539624 is a wasteful number, since it uses less digits than its factorization.

396716539624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9976740 (or 9976736 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 61.

The spelling of 396716539624 in words is "three hundred ninety-six billion, seven hundred sixteen million, five hundred thirty-nine thousand, six hundred twenty-four".