670346860 has 12 divisors (see below), whose sum is σ = 1407728448. Its totient is φ = 268138736.

The previous prime is 670346813. The next prime is 670346863. The reversal of 670346860 is 68643076.

It is not an unprimeable number, because it can be changed into a prime (670346863) 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, 16758652 + ... + 16758691.

It is an arithmetic number, because the mean of its divisors is an integer number (117310704).

Almost surely, 2^670346860 is an apocalyptic number.

It is an amenable number.

670346860 is an abundant number, since it is smaller than the sum of its proper divisors (737381588).

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

670346860 is a wasteful number, since it uses less digits than its factorization.

670346860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33517352 (or 33517350 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 670346860 is about 25891.0575295796. The cubic root of 670346860 is about 875.1849883709.

The spelling of 670346860 in words is "six hundred seventy million, three hundred forty-six thousand, eight hundred sixty".