670522986 has 24 divisors (see below), whose sum is σ = 1660342944. Its totient is φ = 191577960.

The previous prime is 670522969. The next prime is 670522997. The reversal of 670522986 is 689225076.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2660680 + ... + 2660931.

It is an arithmetic number, because the mean of its divisors is an integer number (69180956).

Almost surely, 2^670522986 is an apocalyptic number.

670522986 is an abundant number, since it is smaller than the sum of its proper divisors (989819958).

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

670522986 is a wasteful number, since it uses less digits than its factorization.

670522986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321626 (or 5321623 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 670522986 is about 25894.4585963870. The cubic root of 670522986 is about 875.2616299538.

The spelling of 670522986 in words is "six hundred seventy million, five hundred twenty-two thousand, nine hundred eighty-six".