64894315 has 16 divisors (see below), whose sum is σ = 83162880. Its totient is φ = 48504960.

The previous prime is 64894309. The next prime is 64894327. The reversal of 64894315 is 51349846.

It is not a de Polignac number, because 64894315 - 2⁵ = 64894283 is a prime.

It is a super-2 number, since 2×64894315² = 8422544238638450, which contains 22 as substring.

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, 2724 + ... + 11713.

It is an arithmetic number, because the mean of its divisors is an integer number (5197680).

Almost surely, 2^64894315 is an apocalyptic number.

64894315 is a deficient number, since it is larger than the sum of its proper divisors (18268565).

64894315 is a wasteful number, since it uses less digits than its factorization.

64894315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14502.

The product of its digits is 103680, while the sum is 40.

The square root of 64894315 is about 8055.7007764688. The cubic root of 64894315 is about 401.8545446223.

The spelling of 64894315 in words is "sixty-four million, eight hundred ninety-four thousand, three hundred fifteen".