63904623 has 8 divisors (see below), whose sum is σ = 85411200. Its totient is φ = 42500568.

The previous prime is 63904597. The next prime is 63904651. The reversal of 63904623 is 32640936.

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

It is not a de Polignac number, because 63904623 - 2⁹ = 63904111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63904663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24163 + ... + 26676.

It is an arithmetic number, because the mean of its divisors is an integer number (10676400).

Almost surely, 2^63904623 is an apocalyptic number.

63904623 is a deficient number, since it is larger than the sum of its proper divisors (21506577).

63904623 is a wasteful number, since it uses less digits than its factorization.

63904623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51261.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 63904623 is about 7994.0367149520. The cubic root of 63904623 is about 399.8011991286.

The spelling of 63904623 in words is "sixty-three million, nine hundred four thousand, six hundred twenty-three".