670457023 has 4 divisors (see below), whose sum is σ = 670652568. Its totient is φ = 670261480.

The previous prime is 670457017. The next prime is 670457027. The reversal of 670457023 is 320754076.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670457023 - 2⁵ = 670456991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670457023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670457027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92536 + ... + 99517.

It is an arithmetic number, because the mean of its divisors is an integer number (167663142).

Almost surely, 2^670457023 is an apocalyptic number.

670457023 is a deficient number, since it is larger than the sum of its proper divisors (195545).

670457023 is a wasteful number, since it uses less digits than its factorization.

670457023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195544.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 670457023 is about 25893.1848755614. The cubic root of 670457023 is about 875.2329275939.

The spelling of 670457023 in words is "six hundred seventy million, four hundred fifty-seven thousand, twenty-three".