969642057 has 16 divisors (see below), whose sum is σ = 1339295040. Its totient is φ = 623270592.

The previous prime is 969642053. The next prime is 969642083. The reversal of 969642057 is 750246969.

It is not a de Polignac number, because 969642057 - 2² = 969642053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 969641997 and 969642015.

It is not an unprimeable number, because it can be changed into a prime (969642053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58498 + ... + 73220.

It is an arithmetic number, because the mean of its divisors is an integer number (83705940).

Almost surely, 2^969642057 is an apocalyptic number.

It is an amenable number.

969642057 is a deficient number, since it is larger than the sum of its proper divisors (369652983).

969642057 is a wasteful number, since it uses less digits than its factorization.

969642057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15512.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 969642057 is about 31139.0760460229. The cubic root of 969642057 is about 989.7765223558.

The spelling of 969642057 in words is "nine hundred sixty-nine million, six hundred forty-two thousand, fifty-seven".