1597361089 has 9 divisors (see below), whose sum is σ = 1697572771. Its totient is φ = 1502759200.

The previous prime is 1597361081. The next prime is 1597361099. The reversal of 1597361089 is 9801637951.

The square root of 1597361089 is 39967.

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

It can be written as a sum of positive squares in only one way, i.e., 1243620225 + 353740864 = 35265^2 + 18808^2 .

It is not a de Polignac number, because 1597361089 - 2³ = 1597361081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1597361081) 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, 678264 + ... + 680614.

Almost surely, 2^1597361089 is an apocalyptic number.

1597361089 is the 39967-th square number.

1597361089 is the 19984-th centered octagonal number.

It is an amenable number.

1597361089 is a deficient number, since it is larger than the sum of its proper divisors (100211682).

1597361089 is an frugal number, since it uses more digits than its factorization.

1597361089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4736 (or 2368 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

The cubic root of 1597361089 is about 1168.9637228988.

Multiplying 1597361089 by its sum of digits (49), we get a square (78270693361 = 279769²).

The spelling of 1597361089 in words is "one billion, five hundred ninety-seven million, three hundred sixty-one thousand, eighty-nine".