670949316 has 36 divisors (see below), whose sum is σ = 1698011952. Its totient is φ = 223385904.

The previous prime is 670949311. The next prime is 670949329. The reversal of 670949316 is 613949076.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (670949311) 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, 21235 + ... + 42341.

Almost surely, 2^670949316 is an apocalyptic number.

It is an amenable number.

670949316 is an abundant number, since it is smaller than the sum of its proper divisors (1027062636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670949316 is a wasteful number, since it uses less digits than its factorization.

670949316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22000 (or 21995 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 670949316 is about 25902.6893584431. The cubic root of 670949316 is about 875.4470927649.

The spelling of 670949316 in words is "six hundred seventy million, nine hundred forty-nine thousand, three hundred sixteen".