63728368 has 20 divisors (see below), whose sum is σ = 134698968. Its totient is φ = 28967360.

The previous prime is 63728339. The next prime is 63728387. The reversal of 63728368 is 86382736.

It is a super-2 number, since 2×63728368² = 8122609775886848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180871 + ... + 181222.

Almost surely, 2^63728368 is an apocalyptic number.

It is an amenable number.

63728368 is an abundant number, since it is smaller than the sum of its proper divisors (70970600).

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

63728368 is a wasteful number, since it uses less digits than its factorization.

63728368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362112 (or 362106 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 63728368 is about 7983.0049480130. The cubic root of 63728368 is about 399.4332974999.

The spelling of 63728368 in words is "sixty-three million, seven hundred twenty-eight thousand, three hundred sixty-eight".