392957961 has 16 divisors (see below), whose sum is σ = 577472448. Its totient is φ = 235699200.

The previous prime is 392957947. The next prime is 392957977. The reversal of 392957961 is 169759293.

It is a happy number.

It is not a de Polignac number, because 392957961 - 2⁶ = 392957897 is a prime.

It is a super-2 number, since 2×392957961² = 308831918226555042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (392957911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58180 + ... + 64581.

It is an arithmetic number, because the mean of its divisors is an integer number (36092028).

Almost surely, 2^392957961 is an apocalyptic number.

It is an amenable number.

392957961 is a deficient number, since it is larger than the sum of its proper divisors (184514487).

392957961 is a wasteful number, since it uses less digits than its factorization.

392957961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122872.

The product of its digits is 918540, while the sum is 51.

The square root of 392957961 is about 19823.1672797260. The cubic root of 392957961 is about 732.4568257624.

The spelling of 392957961 in words is "three hundred ninety-two million, nine hundred fifty-seven thousand, nine hundred sixty-one".