63993008 has 10 divisors (see below), whose sum is σ = 123986484. Its totient is φ = 31996496.

The previous prime is 63992977. The next prime is 63993011. The reversal of 63993008 is 80039936.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999766 + ... + 1999797.

Almost surely, 2^63993008 is an apocalyptic number.

It is an amenable number.

63993008 is a deficient number, since it is larger than the sum of its proper divisors (59993476).

63993008 is a wasteful number, since it uses less digits than its factorization.

63993008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999571 (or 3999565 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 63993008 is about 7999.5629880638. The cubic root of 63993008 is about 399.9854328028.

The spelling of 63993008 in words is "sixty-three million, nine hundred ninety-three thousand, eight".