63864495 has 48 divisors (see below), whose sum is σ = 121036032. Its totient is φ = 31011840.

The previous prime is 63864457. The next prime is 63864539. The reversal of 63864495 is 59446836.

63864495 is a `hidden beast` number, since 638 + 6 + 4 + 4 + 9 + 5 = 666.

It is not a de Polignac number, because 63864495 - 2⁶ = 63864431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 63864495.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22369 + ... + 25061.

It is an arithmetic number, because the mean of its divisors is an integer number (2521584).

Almost surely, 2^63864495 is an apocalyptic number.

63864495 is a deficient number, since it is larger than the sum of its proper divisors (57171537).

63864495 is a wasteful number, since it uses less digits than its factorization.

63864495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752 (or 2749 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 63864495 is about 7991.5264499343. The cubic root of 63864495 is about 399.7174984458.

The spelling of 63864495 in words is "sixty-three million, eight hundred sixty-four thousand, four hundred ninety-five".