670297526089 has 3 divisors (see below), whose sum is σ = 670298344807. Its totient is φ = 670296707372.

The previous prime is 670297526057. The next prime is 670297526111. The reversal of 670297526089 is 980625792076.

The square root of 670297526089 is 818717.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 409491207225 + 260806318864 = 639915^2 + 510692^2 .

It is not a de Polignac number, because 670297526089 - 2⁵ = 670297526057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670297526039) 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 2 ways as a sum of consecutive naturals, for example, 409359 + ... + 1228075.

Almost surely, 2^670297526089 is an apocalyptic number.

670297526089 is the 818717-th square number.

670297526089 is the 409359-th centered octagonal number.

It is an amenable number.

670297526089 is a deficient number, since it is larger than the sum of its proper divisors (818718).

670297526089 is an frugal number, since it uses more digits than its factorization.

670297526089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637434 (or 818717 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 670297526089 in words is "six hundred seventy billion, two hundred ninety-seven million, five hundred twenty-six thousand, eighty-nine".