969676521 has 16 divisors (see below), whose sum is σ = 1412183808. Its totient is φ = 586955600.

The previous prime is 969676517. The next prime is 969676523. The reversal of 969676521 is 125676969.

It is not a de Polignac number, because 969676521 - 2² = 969676517 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (969676523) 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, 9526 + ... + 45056.

It is an arithmetic number, because the mean of its divisors is an integer number (88261488).

Almost surely, 2^969676521 is an apocalyptic number.

It is an amenable number.

969676521 is a deficient number, since it is larger than the sum of its proper divisors (442507287).

969676521 is a wasteful number, since it uses less digits than its factorization.

969676521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36372.

The product of its digits is 1224720, while the sum is 51.

The square root of 969676521 is about 31139.6294293943. The cubic root of 969676521 is about 989.7882487634.

The spelling of 969676521 in words is "nine hundred sixty-nine million, six hundred seventy-six thousand, five hundred twenty-one".