63207990 has 24 divisors (see below), whose sum is σ = 164341008. Its totient is φ = 16855440.

The previous prime is 63207973. The next prime is 63208031. The reversal of 63207990 is 9970236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351066 + ... + 351245.

It is an arithmetic number, because the mean of its divisors is an integer number (6847542).

Almost surely, 2^63207990 is an apocalyptic number.

63207990 is an abundant number, since it is smaller than the sum of its proper divisors (101133018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63207990 is a wasteful number, since it uses less digits than its factorization.

63207990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702324 (or 702321 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 63207990 is about 7950.3452755211. The cubic root of 63207990 is about 398.3431255605.

The spelling of 63207990 in words is "sixty-three million, two hundred seven thousand, nine hundred ninety".