63612428 has 24 divisors (see below), whose sum is σ = 125632080. Its totient is φ = 27917120.

The previous prime is 63612401. The next prime is 63612431. The reversal of 63612428 is 82421636.

It is a junction number, because it is equal to n+sod(n) for n = 63612394 and 63612403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23651 + ... + 26202.

It is an arithmetic number, because the mean of its divisors is an integer number (5234670).

Almost surely, 2^63612428 is an apocalyptic number.

It is an amenable number.

63612428 is a deficient number, since it is larger than the sum of its proper divisors (62019652).

63612428 is a wasteful number, since it uses less digits than its factorization.

63612428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49897 (or 49895 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 63612428 is about 7975.7399656709. The cubic root of 63612428 is about 399.1909229224.

The spelling of 63612428 in words is "sixty-three million, six hundred twelve thousand, four hundred twenty-eight".