63957231 has 12 divisors (see below), whose sum is σ = 99489208. Its totient is φ = 39358224.

The previous prime is 63957203. The next prime is 63957263. The reversal of 63957231 is 13275936.

It is not a de Polignac number, because 63957231 - 2⁹ = 63956719 is a prime.

It is a super-2 number, since 2×63957231² = 8181054794374722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63957031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273205 + ... + 273438.

Almost surely, 2^63957231 is an apocalyptic number.

63957231 is a deficient number, since it is larger than the sum of its proper divisors (35531977).

63957231 is a wasteful number, since it uses less digits than its factorization.

63957231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546662 (or 546659 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 63957231 is about 7997.3264907718. The cubic root of 63957231 is about 399.9108780613.

The spelling of 63957231 in words is "sixty-three million, nine hundred fifty-seven thousand, two hundred thirty-one".