63987258 has 16 divisors (see below), whose sum is σ = 128062656. Its totient is φ = 21314400.

The previous prime is 63987247. The next prime is 63987263. The reversal of 63987258 is 85278936.

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, 9283 + ... + 14633.

It is an arithmetic number, because the mean of its divisors is an integer number (8003916).

Almost surely, 2^63987258 is an apocalyptic number.

63987258 is an abundant number, since it is smaller than the sum of its proper divisors (64075398).

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

63987258 is a wasteful number, since it uses less digits than its factorization.

63987258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7349.

The product of its digits is 725760, while the sum is 48.

The square root of 63987258 is about 7999.2035853577. The cubic root of 63987258 is about 399.9734524048.

The spelling of 63987258 in words is "sixty-three million, nine hundred eighty-seven thousand, two hundred fifty-eight".