670528 has 14 divisors (see below), whose sum is σ = 1330706. Its totient is φ = 335232.

The previous prime is 670517. The next prime is 670541. The reversal of 670528 is 825076.

It can be written as a sum of positive squares in only one way, i.e., 627264 + 43264 = 792^2 + 208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 670496 and 670505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5175 + ... + 5302.

2⁶⁷⁰⁵²⁸ is an apocalyptic number.

It is an amenable number.

670528 is a deficient number, since it is larger than the sum of its proper divisors (660178).

670528 is a wasteful number, since it uses less digits than its factorization.

670528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10489 (or 10479 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 670528 is about 818.8577410027. The cubic root of 670528 is about 87.5263811610.

The spelling of 670528 in words is "six hundred seventy thousand, five hundred twenty-eight".