670860672 has 32 divisors (see below), whose sum is σ = 1781974680. Its totient is φ = 223620096.

The previous prime is 670860667. The next prime is 670860679. The reversal of 670860672 is 276068076.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670860679) 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, 873133 + ... + 873900.

Almost surely, 2^670860672 is an apocalyptic number.

It is an amenable number.

670860672 is an abundant number, since it is smaller than the sum of its proper divisors (1111114008).

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

670860672 is a wasteful number, since it uses less digits than its factorization.

670860672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747050 (or 1747038 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 670860672 is about 25900.9782054655. The cubic root of 670860672 is about 875.4085371700.

The spelling of 670860672 in words is "six hundred seventy million, eight hundred sixty thousand, six hundred seventy-two".