670686528 has 56 divisors (see below), whose sum is σ = 1817827200. Its totient is φ = 218106880.

The previous prime is 670686517. The next prime is 670686547. The reversal of 670686528 is 825686076.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34728 + ... + 50471.

It is an arithmetic number, because the mean of its divisors is an integer number (32461200).

Almost surely, 2^670686528 is an apocalyptic number.

It is an amenable number.

670686528 is an abundant number, since it is smaller than the sum of its proper divisors (1147140672).

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

670686528 is a wasteful number, since it uses less digits than its factorization.

670686528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85255 (or 85245 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 670686528 is about 25897.6162609612. The cubic root of 670686528 is about 875.3327835680.

The spelling of 670686528 in words is "six hundred seventy million, six hundred eighty-six thousand, five hundred twenty-eight".