63893616 has 40 divisors (see below), whose sum is σ = 174770064. Its totient is φ = 20044800.

The previous prime is 63893597. The next prime is 63893623. The reversal of 63893616 is 61639836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38335 + ... + 39966.

Almost surely, 2^63893616 is an apocalyptic number.

It is an amenable number.

63893616 is an abundant number, since it is smaller than the sum of its proper divisors (110876448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63893616 is a wasteful number, since it uses less digits than its factorization.

63893616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78329 (or 78323 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 63893616 is about 7993.3482346261. The cubic root of 63893616 is about 399.7782437498.

The spelling of 63893616 in words is "sixty-three million, eight hundred ninety-three thousand, six hundred sixteen".