670666674 has 32 divisors (see below), whose sum is σ = 1416602880. Its totient is φ = 211088592.

The previous prime is 670666631. The next prime is 670666687. The reversal of 670666674 is 476666076.

It is a super-2 number, since 2×670666674² = 899587575228444552, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25417 + ... + 44579.

It is an arithmetic number, because the mean of its divisors is an integer number (44268840).

Almost surely, 2^670666674 is an apocalyptic number.

670666674 is an abundant number, since it is smaller than the sum of its proper divisors (745936206).

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

670666674 is a wasteful number, since it uses less digits than its factorization.

670666674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19494.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The square root of 670666674 is about 25897.2329409920. The cubic root of 670666674 is about 875.3241461356.

The spelling of 670666674 in words is "six hundred seventy million, six hundred sixty-six thousand, six hundred seventy-four".