8638215364 has 9 divisors (see below), whose sum is σ = 15117202191. Its totient is φ = 4319014740.

The previous prime is 8638215359. The next prime is 8638215431. The reversal of 8638215364 is 4635128368.

The square root of 8638215364 is 92942.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 162649 + ... + 209119.

Almost surely, 2^8638215364 is an apocalyptic number.

8638215364 is the 92942-nd square number.

It is an amenable number.

8638215364 is a deficient number, since it is larger than the sum of its proper divisors (6478986827).

8638215364 is an frugal number, since it uses more digits than its factorization.

8638215364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92946 (or 46473 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The cubic root of 8638215364 is about 2051.8298445874.

The spelling of 8638215364 in words is "eight billion, six hundred thirty-eight million, two hundred fifteen thousand, three hundred sixty-four".