64211315 has 16 divisors (see below), whose sum is σ = 89860800. Its totient is φ = 44029440.

The previous prime is 64211299. The next prime is 64211321. The reversal of 64211315 is 51311246.

64211315 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 64211315 - 2⁴ = 64211299 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17006 + ... + 20435.

It is an arithmetic number, because the mean of its divisors is an integer number (5616300).

Almost surely, 2^64211315 is an apocalyptic number.

64211315 is a deficient number, since it is larger than the sum of its proper divisors (25649485).

64211315 is an equidigital number, since it uses as much as digits as its factorization.

64211315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37467 (or 37453 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 64211315 is about 8013.1963035982. The cubic root of 64211315 is about 400.4397559429.

The spelling of 64211315 in words is "sixty-four million, two hundred eleven thousand, three hundred fifteen".