63904894 has 8 divisors (see below), whose sum is σ = 96753528. Its totient is φ = 31653720.

The previous prime is 63904889. The next prime is 63904901. The reversal of 63904894 is 49840936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 63904894.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149097 + ... + 149524.

It is an arithmetic number, because the mean of its divisors is an integer number (12094191).

Almost surely, 2^63904894 is an apocalyptic number.

63904894 is a deficient number, since it is larger than the sum of its proper divisors (32848634).

63904894 is a wasteful number, since it uses less digits than its factorization.

63904894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298730.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 63904894 is about 7994.0536650688. The cubic root of 63904894 is about 399.8017642727.

The spelling of 63904894 in words is "sixty-three million, nine hundred four thousand, eight hundred ninety-four".