670531379 has 16 divisors (see below), whose sum is σ = 786922752. Its totient is φ = 559385568.

The previous prime is 670531321. The next prime is 670531447. The reversal of 670531379 is 973135076.

It is a de Polignac number, because none of the positive numbers 2^k-670531379 is a prime.

It is a super-2 number, since 2×670531379² = 899224660447283282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (670531079) 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, 84392 + ... + 91994.

It is an arithmetic number, because the mean of its divisors is an integer number (49182672).

Almost surely, 2^670531379 is an apocalyptic number.

670531379 is a deficient number, since it is larger than the sum of its proper divisors (116391373).

670531379 is a wasteful number, since it uses less digits than its factorization.

670531379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7946.

The product of its (nonzero) digits is 119070, while the sum is 41.

The square root of 670531379 is about 25894.6206575806. The cubic root of 670531379 is about 875.2652818496.

The spelling of 670531379 in words is "six hundred seventy million, five hundred thirty-one thousand, three hundred seventy-nine".