63406888 has 16 divisors (see below), whose sum is σ = 119757780. Its totient is φ = 31471488.

The previous prime is 63406841. The next prime is 63406943. The reversal of 63406888 is 88860436.

It can be written as a sum of positive squares in 2 ways, for example, as 61496964 + 1909924 = 7842^2 + 1382^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27831 + ... + 30022.

Almost surely, 2^63406888 is an apocalyptic number.

It is an amenable number.

63406888 is a deficient number, since it is larger than the sum of its proper divisors (56350892).

63406888 is a wasteful number, since it uses less digits than its factorization.

63406888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57996 (or 57992 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 63406888 is about 7962.8442154798. The cubic root of 63406888 is about 398.7605131481.

The spelling of 63406888 in words is "sixty-three million, four hundred six thousand, eight hundred eighty-eight".