63974732 has 12 divisors (see below), whose sum is σ = 112290360. Its totient is φ = 31891776.

The previous prime is 63974711. The next prime is 63974737. The reversal of 63974732 is 23747936.

It is a self number, because there is not a number n which added to its sum of digits gives 63974732.

It is not an unprimeable number, because it can be changed into a prime (63974737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22382 + ... + 25077.

It is an arithmetic number, because the mean of its divisors is an integer number (9357530).

Almost surely, 2^63974732 is an apocalyptic number.

It is an amenable number.

63974732 is a deficient number, since it is larger than the sum of its proper divisors (48315628).

63974732 is a wasteful number, since it uses less digits than its factorization.

63974732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47800 (or 47798 counting only the distinct ones).

The product of its digits is 190512, while the sum is 41.

The square root of 63974732 is about 7998.4205940923. The cubic root of 63974732 is about 399.9473514040.

The spelling of 63974732 in words is "sixty-three million, nine hundred seventy-four thousand, seven hundred thirty-two".