63942808 has 16 divisors (see below), whose sum is σ = 123133680. Its totient is φ = 31107168.

The previous prime is 63942799. The next prime is 63942811. The reversal of 63942808 is 80824936.

It is a congruent number.

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, 107716 + ... + 108307.

It is an arithmetic number, because the mean of its divisors is an integer number (7695855).

Almost surely, 2^63942808 is an apocalyptic number.

It is an amenable number.

63942808 is a deficient number, since it is larger than the sum of its proper divisors (59190872).

63942808 is a wasteful number, since it uses less digits than its factorization.

63942808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216066 (or 216062 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 63942808 is about 7996.4247010774. The cubic root of 63942808 is about 399.8808144906.

The spelling of 63942808 in words is "sixty-three million, nine hundred forty-two thousand, eight hundred eight".