64387495 has 16 divisors (see below), whose sum is σ = 78576480. Its totient is φ = 50642944.

The previous prime is 64387487. The next prime is 64387541. The reversal of 64387495 is 59478346.

It is a cyclic number.

It is not a de Polignac number, because 64387495 - 2³ = 64387487 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 114084 + ... + 114646.

It is an arithmetic number, because the mean of its divisors is an integer number (4911030).

Almost surely, 2^64387495 is an apocalyptic number.

64387495 is a deficient number, since it is larger than the sum of its proper divisors (14188985).

64387495 is a wasteful number, since it uses less digits than its factorization.

64387495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its digits is 725760, while the sum is 46.

The square root of 64387495 is about 8024.1818897630. The cubic root of 64387495 is about 400.8056574507.

The spelling of 64387495 in words is "sixty-four million, three hundred eighty-seven thousand, four hundred ninety-five".