396697525 has 24 divisors (see below), whose sum is σ = 581569920. Its totient is φ = 262637760.

The previous prime is 396697507. The next prime is 396697529. The reversal of 396697525 is 525796693.

It is not a de Polignac number, because 396697525 - 2⁵ = 396697493 is a prime.

It is a super-2 number, since 2×396697525² = 314737852682251250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (52) 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 (396697529) 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, 34009 + ... + 44158.

It is an arithmetic number, because the mean of its divisors is an integer number (24232080).

Almost surely, 2^396697525 is an apocalyptic number.

396697525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

396697525 is a deficient number, since it is larger than the sum of its proper divisors (184872395).

396697525 is a wasteful number, since it uses less digits than its factorization.

396697525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78213 (or 78208 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 52.

The square root of 396697525 is about 19917.2670062938. The cubic root of 396697525 is about 734.7729565439.

The spelling of 396697525 in words is "three hundred ninety-six million, six hundred ninety-seven thousand, five hundred twenty-five".