670957973 has 16 divisors (see below), whose sum is σ = 779175936. Its totient is φ = 565888560.

The previous prime is 670957961. The next prime is 670957993. The reversal of 670957973 is 379759076.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 670957973 - 2²⁶ = 603849109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670957913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150608 + ... + 154998.

It is an arithmetic number, because the mean of its divisors is an integer number (48698496).

Almost surely, 2^670957973 is an apocalyptic number.

It is an amenable number.

670957973 is a deficient number, since it is larger than the sum of its proper divisors (108217963).

670957973 is a wasteful number, since it uses less digits than its factorization.

670957973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744.

The product of its (nonzero) digits is 2500470, while the sum is 53.

The square root of 670957973 is about 25902.8564641045. The cubic root of 670957973 is about 875.4508579340.

The spelling of 670957973 in words is "six hundred seventy million, nine hundred fifty-seven thousand, nine hundred seventy-three".