63982864 has 30 divisors (see below), whose sum is σ = 136265150. Its totient is φ = 29082240.

The previous prime is 63982847. The next prime is 63982873. The reversal of 63982864 is 46828936.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 33732864 + 30250000 = 5808^2 + 5500^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14589 + ... + 18460.

Almost surely, 2^63982864 is an apocalyptic number.

It is an amenable number.

63982864 is an abundant number, since it is smaller than the sum of its proper divisors (72282286).

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

63982864 is a wasteful number, since it uses less digits than its factorization.

63982864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33079 (or 33062 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 63982864 is about 7998.9289283003. The cubic root of 63982864 is about 399.9642968133.

It can be divided in two parts, 63982 and 864, that added together give a palindrome (64846).

The spelling of 63982864 in words is "sixty-three million, nine hundred eighty-two thousand, eight hundred sixty-four".