670764 has 12 divisors (see below), whose sum is σ = 1565144. Its totient is φ = 223584.

The previous prime is 670763. The next prime is 670777. The reversal of 670764 is 467076.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (670763) 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, 27937 + ... + 27960.

2⁶⁷⁰⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

670764 is an abundant number, since it is smaller than the sum of its proper divisors (894380).

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

670764 is a wasteful number, since it uses less digits than its factorization.

670764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55904 (or 55902 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 670764 is about 819.0018314998. The cubic root of 670764 is about 87.5366485935.

The spelling of 670764 in words is "six hundred seventy thousand, seven hundred sixty-four".