63679128 has 32 divisors (see below), whose sum is σ = 164689200. Its totient is φ = 20494208.

The previous prime is 63679123. The next prime is 63679159. The reversal of 63679128 is 82197636.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 63679128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63679123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45051 + ... + 46442.

Almost surely, 2^63679128 is an apocalyptic number.

It is an amenable number.

63679128 is an abundant number, since it is smaller than the sum of its proper divisors (101010072).

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

63679128 is a wasteful number, since it uses less digits than its factorization.

63679128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91531 (or 91527 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 63679128 is about 7979.9203003539. The cubic root of 63679128 is about 399.3303963696.

The spelling of 63679128 in words is "sixty-three million, six hundred seventy-nine thousand, one hundred twenty-eight".