1579097897 has 8 divisors (see below), whose sum is σ = 1719675720. Its totient is φ = 1441249920.

The previous prime is 1579097851. The next prime is 1579097957. The reversal of 1579097897 is 7987909751.

It can be written as a sum of positive squares in 4 ways, for example, as 149426176 + 1429671721 = 12224^2 + 37811^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1579097897 - 2¹⁰ = 1579096873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1579097837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681254 + ... + 683567.

It is an arithmetic number, because the mean of its divisors is an integer number (214959465).

Almost surely, 2^1579097897 is an apocalyptic number.

It is an amenable number.

1579097897 is a deficient number, since it is larger than the sum of its proper divisors (140577823).

1579097897 is a wasteful number, since it uses less digits than its factorization.

1579097897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364923.

The product of its (nonzero) digits is 10001880, while the sum is 62.

The square root of 1579097897 is about 39737.8647765579. The cubic root of 1579097897 is about 1164.4915774704.

The spelling of 1579097897 in words is "one billion, five hundred seventy-nine million, ninety-seven thousand, eight hundred ninety-seven".