63972772 has 24 divisors (see below), whose sum is σ = 118117440. Its totient is φ = 30232800.

The previous prime is 63972767. The next prime is 63972787. The reversal of 63972772 is 27727936.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48522 + ... + 49822.

It is an arithmetic number, because the mean of its divisors is an integer number (4921560).

Almost surely, 2^63972772 is an apocalyptic number.

It is an amenable number.

63972772 is a deficient number, since it is larger than the sum of its proper divisors (54144668).

63972772 is a wasteful number, since it uses less digits than its factorization.

63972772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1969 counting only the distinct ones).

The product of its digits is 222264, while the sum is 43.

The square root of 63972772 is about 7998.2980689644. The cubic root of 63972772 is about 399.9432669538.

The spelling of 63972772 in words is "sixty-three million, nine hundred seventy-two thousand, seven hundred seventy-two".