670569197 has 6 divisors (see below), whose sum is σ = 683413578. Its totient is φ = 657731984.

The previous prime is 670569191. The next prime is 670569247. The reversal of 670569197 is 791965076.

It can be written as a sum of positive squares in 3 ways, for example, as 4206601 + 666362596 = 2051^2 + 25814^2 .

It is not a de Polignac number, because 670569197 - 2¹² = 670565101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670569191) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 186743 + ... + 190299.

It is an arithmetic number, because the mean of its divisors is an integer number (113902263).

Almost surely, 2^670569197 is an apocalyptic number.

It is an amenable number.

670569197 is a deficient number, since it is larger than the sum of its proper divisors (12844381).

670569197 is an frugal number, since it uses more digits than its factorization.

670569197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7167 (or 3610 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 670569197 is about 25895.3508761708. The cubic root of 670569197 is about 875.2817365407.

The spelling of 670569197 in words is "six hundred seventy million, five hundred sixty-nine thousand, one hundred ninety-seven".