64215395 has 16 divisors (see below), whose sum is σ = 79073280. Its totient is φ = 50039904.

The previous prime is 64215343. The next prime is 64215401. The reversal of 64215395 is 59351246.

It is a cyclic number.

It is not a de Polignac number, because 64215395 - 2⁶ = 64215331 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, 61286 + ... + 62324.

It is an arithmetic number, because the mean of its divisors is an integer number (4942080).

Almost surely, 2^64215395 is an apocalyptic number.

64215395 is a deficient number, since it is larger than the sum of its proper divisors (14857885).

64215395 is a wasteful number, since it uses less digits than its factorization.

64215395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354.

The product of its digits is 32400, while the sum is 35.

The square root of 64215395 is about 8013.4508796148. The cubic root of 64215395 is about 400.4482371045.

The spelling of 64215395 in words is "sixty-four million, two hundred fifteen thousand, three hundred ninety-five".