63986080 has 24 divisors (see below), whose sum is σ = 151167492. Its totient is φ = 25594368.

The previous prime is 63986071. The next prime is 63986101. The reversal of 63986080 is 8068936.

It can be written as a sum of positive squares in 2 ways, for example, as 62536464 + 1449616 = 7908^2 + 1204^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199797 + ... + 200116.

Almost surely, 2^63986080 is an apocalyptic number.

It is an amenable number.

63986080 is an abundant number, since it is smaller than the sum of its proper divisors (87181412).

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

63986080 is a wasteful number, since it uses less digits than its factorization.

63986080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399928 (or 399920 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 63986080 is about 7999.1299526886. The cubic root of 63986080 is about 399.9709978972.

The spelling of 63986080 in words is "sixty-three million, nine hundred eighty-six thousand, eighty".