63694888 has 16 divisors (see below), whose sum is σ = 119623860. Its totient is φ = 31795200.

The previous prime is 63694879. The next prime is 63694907. The reversal of 63694888 is 88849636.

63694888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47032164 + 16662724 = 6858^2 + 4082^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083 + ... + 11338.

Almost surely, 2^63694888 is an apocalyptic number.

It is an amenable number.

63694888 is a deficient number, since it is larger than the sum of its proper divisors (55928972).

63694888 is a wasteful number, since it uses less digits than its factorization.

63694888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13068 (or 13064 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 63694888 is about 7980.9077177975. The cubic root of 63694888 is about 399.3633371888.

The spelling of 63694888 in words is "sixty-three million, six hundred ninety-four thousand, eight hundred eighty-eight".