397067597689 has 9 divisors (see below), whose sum is σ = 461900091717. Its totient is φ = 340339874364.

The previous prime is 397067597681. The next prime is 397067597699. The reversal of 397067597689 is 986795760793.

The square root of 397067597689 is 630133.

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

It is not a de Polignac number, because 397067597689 - 2³ = 397067597681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397067597681) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4365922 + ... + 4455940.

It is an arithmetic number, because the mean of its divisors is an integer number (51322232413).

Almost surely, 2^397067597689 is an apocalyptic number.

397067597689 is the 630133-rd square number.

397067597689 is the 315067-th centered octagonal number.

It is an amenable number.

397067597689 is a deficient number, since it is larger than the sum of its proper divisors (64832494028).

397067597689 is an frugal number, since it uses more digits than its factorization.

397067597689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180052 (or 90026 counting only the distinct ones).

The product of its (nonzero) digits is 1080203040, while the sum is 76.

The spelling of 397067597689 in words is "three hundred ninety-seven billion, sixty-seven million, five hundred ninety-seven thousand, six hundred eighty-nine".