1573698897 has 24 divisors (see below), whose sum is σ = 2297155328. Its totient is φ = 1038096000.

The previous prime is 1573698853. The next prime is 1573698901. The reversal of 1573698897 is 7988963751.

It is not a de Polignac number, because 1573698897 - 2⁸ = 1573698641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1573698817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366153 + ... + 370425.

Almost surely, 2^1573698897 is an apocalyptic number.

It is an amenable number.

1573698897 is a deficient number, since it is larger than the sum of its proper divisors (723456431).

1573698897 is a wasteful number, since it uses less digits than its factorization.

1573698897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701 (or 4698 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The square root of 1573698897 is about 39669.8739221591. The cubic root of 1573698897 is about 1163.1629140286.

The spelling of 1573698897 in words is "one billion, five hundred seventy-three million, six hundred ninety-eight thousand, eight hundred ninety-seven".