63897264 has 30 divisors (see below), whose sum is σ = 178823996. Its totient is φ = 21299040.

The previous prime is 63897263. The next prime is 63897287. The reversal of 63897264 is 46279836.

63897264 is a `hidden beast` number, since 6 + 389 + 7 + 264 = 666.

It is not an unprimeable number, because it can be changed into a prime (63897263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221722 + ... + 222009.

Almost surely, 2^63897264 is an apocalyptic number.

It is an amenable number.

63897264 is an abundant number, since it is smaller than the sum of its proper divisors (114926732).

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

63897264 is a wasteful number, since it uses less digits than its factorization.

63897264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443745 (or 443736 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 63897264 is about 7993.5764211021. The cubic root of 63897264 is about 399.7858520388.

The spelling of 63897264 in words is "sixty-three million, eight hundred ninety-seven thousand, two hundred sixty-four".