670666023 has 12 divisors (see below), whose sum is σ = 969562048. Its totient is φ = 446731200.

The previous prime is 670666021. The next prime is 670666037. The reversal of 670666023 is 320666076.

It is not a de Polignac number, because 670666023 - 2¹ = 670666021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670666021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20215 + ... + 41832.

Almost surely, 2^670666023 is an apocalyptic number.

670666023 is a deficient number, since it is larger than the sum of its proper divisors (298896025).

670666023 is a wasteful number, since it uses less digits than its factorization.

670666023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63254 (or 63251 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 670666023 is about 25897.2203720785. The cubic root of 670666023 is about 875.3238629169.

The spelling of 670666023 in words is "six hundred seventy million, six hundred sixty-six thousand, twenty-three".