63977914 has 32 divisors (see below), whose sum is σ = 128854656. Its totient is φ = 23008320.

The previous prime is 63977909. The next prime is 63977929. The reversal of 63977914 is 41977936.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13977 + ... + 17980.

It is an arithmetic number, because the mean of its divisors is an integer number (4026708).

Almost surely, 2^63977914 is an apocalyptic number.

63977914 is an abundant number, since it is smaller than the sum of its proper divisors (64876742).

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

63977914 is a wasteful number, since it uses less digits than its factorization.

63977914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31990.

The product of its digits is 285768, while the sum is 46.

The square root of 63977914 is about 7998.6195058898. The cubic root of 63977914 is about 399.9539822061.

The spelling of 63977914 in words is "sixty-three million, nine hundred seventy-seven thousand, nine hundred fourteen".