670928 has 20 divisors (see below), whose sum is σ = 1368960. Its totient is φ = 317664.

The previous prime is 670919. The next prime is 670931. The reversal of 670928 is 829076.

It is a junction number, because it is equal to n+sod(n) for n = 670894 and 670903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800 + ... + 1407.

It is an arithmetic number, because the mean of its divisors is an integer number (68448).

2⁶⁷⁰⁹²⁸ is an apocalyptic number.

It is an amenable number.

670928 is an abundant number, since it is smaller than the sum of its proper divisors (698032).

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

670928 is a wasteful number, since it uses less digits than its factorization.

670928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234 (or 2228 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 670928 is about 819.1019472569. The cubic root of 670928 is about 87.5437821708.

The spelling of 670928 in words is "six hundred seventy thousand, nine hundred twenty-eight".