396925929 has 27 divisors (see below), whose sum is σ = 596393733. Its totient is φ = 254376864.

The previous prime is 396925901. The next prime is 396925931. The reversal of 396925929 is 929529693.

The square root of 396925929 is 19923.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 106564329 + 290361600 = 10323^2 + 17040^2 .

It is not a de Polignac number, because 396925929 - 2¹³ = 396917737 is a prime.

It is a super-2 number, since 2×396925929² = 315100386225026082, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (396925729) 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 26 ways as a sum of consecutive naturals, for example, 1733187 + ... + 1733415.

Almost surely, 2^396925929 is an apocalyptic number.

396925929 is the 19923-rd square number.

396925929 is the 9962-nd centered octagonal number.

It is an amenable number.

396925929 is a deficient number, since it is larger than the sum of its proper divisors (199467804).

396925929 is an equidigital number, since it uses as much as digits as its factorization.

396925929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 261 counting only the distinct ones).

The product of its digits is 2361960, while the sum is 54.

The cubic root of 396925929 is about 734.9139479987.

The spelling of 396925929 in words is "three hundred ninety-six million, nine hundred twenty-five thousand, nine hundred twenty-nine".