969663231 has 20 divisors (see below), whose sum is σ = 1451907072. Its totient is φ = 644925888.

The previous prime is 969663217. The next prime is 969663239. The reversal of 969663231 is 132366969.

It is a happy number.

969663231 is a `hidden beast` number, since 9 + 6 + 9 + 6 + 632 + 3 + 1 = 666.

It is not a de Polignac number, because 969663231 - 2⁵ = 969663199 is a prime.

It is a super-2 number, since 2×969663231² = 1880493563106718722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969663239) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21250 + ... + 48896.

Almost surely, 2^969663231 is an apocalyptic number.

969663231 is a deficient number, since it is larger than the sum of its proper divisors (482243841).

969663231 is a wasteful number, since it uses less digits than its factorization.

969663231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28092 (or 28083 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 969663231 is about 31139.4160349869. The cubic root of 969663231 is about 989.7837268616.

It can be divided in two parts, 9696 and 63231, that added together give a palindrome (72927).

The spelling of 969663231 in words is "nine hundred sixty-nine million, six hundred sixty-three thousand, two hundred thirty-one".