670317568 has 88 divisors (see below), whose sum is σ = 1426677120. Its totient is φ = 313896960.

The previous prime is 670317559. The next prime is 670317581. The reversal of 670317568 is 865713076.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548605 + ... + 2548867.

It is an arithmetic number, because the mean of its divisors is an integer number (16212240).

Almost surely, 2^670317568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670317568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713338560).

670317568 is an abundant number, since it is smaller than the sum of its proper divisors (756359552).

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

670317568 is a wasteful number, since it uses less digits than its factorization.

670317568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 670317568 is about 25890.4918454633. The cubic root of 670317568 is about 875.1722405962.

The spelling of 670317568 in words is "six hundred seventy million, three hundred seventeen thousand, five hundred sixty-eight".