670338564 has 24 divisors (see below), whose sum is σ = 1787569728. Its totient is φ = 191525280.

The previous prime is 670338553. The next prime is 670338587. The reversal of 670338564 is 465833076.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3990027 + ... + 3990194.

It is an arithmetic number, because the mean of its divisors is an integer number (74482072).

Almost surely, 2^670338564 is an apocalyptic number.

It is an amenable number.

670338564 is an abundant number, since it is smaller than the sum of its proper divisors (1117231164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670338564 is a wasteful number, since it uses less digits than its factorization.

670338564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7980235 (or 7980233 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 670338564 is about 25890.8973193283. The cubic root of 670338564 is about 875.1813780188.

The spelling of 670338564 in words is "six hundred seventy million, three hundred thirty-eight thousand, five hundred sixty-four".