670672 has 20 divisors (see below), whose sum is σ = 1312416. Its totient is φ = 332000.

The previous prime is 670669. The next prime is 670673. The reversal of 670672 is 276076.

670672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 670672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670673) 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, 2547 + ... + 2797.

2⁶⁷⁰⁶⁷² is an apocalyptic number.

It is an amenable number.

670672 is a deficient number, since it is larger than the sum of its proper divisors (641744).

670672 is a wasteful number, since it uses less digits than its factorization.

670672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 670672 is about 818.9456636432. The cubic root of 670672 is about 87.5326463215.

The spelling of 670672 in words is "six hundred seventy thousand, six hundred seventy-two".