63990974 has 16 divisors (see below), whose sum is σ = 102044880. Its totient is φ = 30009600.

The previous prime is 63990973. The next prime is 63990977. The reversal of 63990974 is 47909936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63990973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4499 + ... + 12174.

It is an arithmetic number, because the mean of its divisors is an integer number (6377805).

Almost surely, 2^63990974 is an apocalyptic number.

63990974 is a deficient number, since it is larger than the sum of its proper divisors (38053906).

63990974 is a wasteful number, since it uses less digits than its factorization.

63990974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16795.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 63990974 is about 7999.4358551088. The cubic root of 63990974 is about 399.9811949493.

The spelling of 63990974 in words is "sixty-three million, nine hundred ninety thousand, nine hundred seventy-four".