670949507 has 8 divisors (see below), whose sum is σ = 679735056. Its totient is φ = 662180832.

The previous prime is 670949501. The next prime is 670949561. The reversal of 670949507 is 705949076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670949507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670949501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89093 + ... + 96329.

It is an arithmetic number, because the mean of its divisors is an integer number (84966882).

Almost surely, 2^670949507 is an apocalyptic number.

670949507 is a deficient number, since it is larger than the sum of its proper divisors (8785549).

670949507 is a wasteful number, since it uses less digits than its factorization.

670949507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8437.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 670949507 is about 25902.6930453187. The cubic root of 670949507 is about 875.4471758364.

The spelling of 670949507 in words is "six hundred seventy million, nine hundred forty-nine thousand, five hundred seven".