63372820 has 48 divisors (see below), whose sum is σ = 158715648. Its totient is φ = 20782080.

The previous prime is 63372817. The next prime is 63372853. The reversal of 63372820 is 2827336.

It is a super-2 number, since 2×63372820² = 8032228629504800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6621 + ... + 13060.

It is an arithmetic number, because the mean of its divisors is an integer number (3306576).

Almost surely, 2^63372820 is an apocalyptic number.

It is an amenable number.

63372820 is an abundant number, since it is smaller than the sum of its proper divisors (95342828).

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

63372820 is a wasteful number, since it uses less digits than its factorization.

63372820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19720 (or 19718 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 63372820 is about 7960.7047426720. The cubic root of 63372820 is about 398.6890834378.

The spelling of 63372820 in words is "sixty-three million, three hundred seventy-two thousand, eight hundred twenty".