670684 has 24 divisors (see below), whose sum is σ = 1421280. Its totient is φ = 270336.

The previous prime is 670673. The next prime is 670693. The reversal of 670684 is 486076.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229 + ... + 1180.

It is an arithmetic number, because the mean of its divisors is an integer number (59220).

2⁶⁷⁰⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

670684 is an abundant number, since it is smaller than the sum of its proper divisors (750596).

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

670684 is a wasteful number, since it uses less digits than its factorization.

670684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 670684 is about 818.9529901038. The cubic root of 670684 is about 87.5331683777.

The spelling of 670684 in words is "six hundred seventy thousand, six hundred eighty-four".