670064892 has 24 divisors (see below), whose sum is σ = 1786839936. Its totient is φ = 191447088.

The previous prime is 670064881. The next prime is 670064933. The reversal of 670064892 is 298460076.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 3988398 + ... + 3988565.

It is an arithmetic number, because the mean of its divisors is an integer number (74451664).

Almost surely, 2^670064892 is an apocalyptic number.

It is an amenable number.

670064892 is an abundant number, since it is smaller than the sum of its proper divisors (1116775044).

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

670064892 is a wasteful number, since it uses less digits than its factorization.

670064892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976977 (or 7976975 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 670064892 is about 25885.6116790776. The cubic root of 670064892 is about 875.0622614744.

The spelling of 670064892 in words is "six hundred seventy million, sixty-four thousand, eight hundred ninety-two".