396697524 has 12 divisors (see below), whose sum is σ = 925627584. Its totient is φ = 132232504.

The previous prime is 396697507. The next prime is 396697529. The reversal of 396697524 is 425796693.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396697529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16529052 + ... + 16529075.

It is an arithmetic number, because the mean of its divisors is an integer number (77135632).

Almost surely, 2^396697524 is an apocalyptic number.

It is an amenable number.

396697524 is an abundant number, since it is smaller than the sum of its proper divisors (528930060).

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

396697524 is a wasteful number, since it uses less digits than its factorization.

396697524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33058134 (or 33058132 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 51.

The square root of 396697524 is about 19917.2669811900. The cubic root of 396697524 is about 734.7729559265.

The spelling of 396697524 in words is "three hundred ninety-six million, six hundred ninety-seven thousand, five hundred twenty-four".