64368415 has 4 divisors (see below), whose sum is σ = 77242104. Its totient is φ = 51494728.

The previous prime is 64368397. The next prime is 64368433. The reversal of 64368415 is 51486346.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (64368397) and next prime (64368433).

It is a cyclic number.

It is not a de Polignac number, because 64368415 - 2⁷ = 64368287 is a prime.

It is a super-2 number, since 2×64368415² = 8286585699224450, which contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 6436837 + ... + 6436846.

It is an arithmetic number, because the mean of its divisors is an integer number (19310526).

Almost surely, 2^64368415 is an apocalyptic number.

64368415 is a deficient number, since it is larger than the sum of its proper divisors (12873689).

64368415 is a wasteful number, since it uses less digits than its factorization.

64368415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12873688.

The product of its digits is 69120, while the sum is 37.

The square root of 64368415 is about 8022.9928954225. The cubic root of 64368415 is about 400.7660631814.

The spelling of 64368415 in words is "sixty-four million, three hundred sixty-eight thousand, four hundred fifteen".