670493660 has 24 divisors (see below), whose sum is σ = 1482144720. Its totient is φ = 254081664.

The previous prime is 670493657. The next prime is 670493669. The reversal of 670493660 is 66394076.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670493669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881849 + ... + 882608.

It is an arithmetic number, because the mean of its divisors is an integer number (61756030).

Almost surely, 2^670493660 is an apocalyptic number.

It is an amenable number.

670493660 is an abundant number, since it is smaller than the sum of its proper divisors (811651060).

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

670493660 is a wasteful number, since it uses less digits than its factorization.

670493660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764485 (or 1764483 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 670493660 is about 25893.8923300457. The cubic root of 670493660 is about 875.2488696174.

The spelling of 670493660 in words is "six hundred seventy million, four hundred ninety-three thousand, six hundred sixty".