1597928 has 8 divisors (see below), whose sum is σ = 2996130. Its totient is φ = 798960.

The previous prime is 1597927. The next prime is 1597931. The reversal of 1597928 is 8297951.

It can be written as a sum of positive squares in only one way, i.e., 1304164 + 293764 = 1142^2 + 542^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1597927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99863 + ... + 99878.

2^1597928 is an apocalyptic number.

It is an amenable number.

1597928 is a deficient number, since it is larger than the sum of its proper divisors (1398202).

1597928 is a wasteful number, since it uses less digits than its factorization.

1597928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199747 (or 199743 counting only the distinct ones).

The product of its digits is 45360, while the sum is 41.

The square root of 1597928 is about 1264.0917688206. The cubic root of 1597928 is about 116.9101996792.

The spelling of 1597928 in words is "one million, five hundred ninety-seven thousand, nine hundred twenty-eight".