1597872 has 20 divisors (see below), whose sum is σ = 4127960. Its totient is φ = 532608.

The previous prime is 1597861. The next prime is 1597873. The reversal of 1597872 is 2787951.

It is a self number, because there is not a number n which added to its sum of digits gives 1597872.

It is not an unprimeable number, because it can be changed into a prime (1597873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16597 + ... + 16692.

It is an arithmetic number, because the mean of its divisors is an integer number (206398).

2^1597872 is an apocalyptic number.

1597872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1597872 is an abundant number, since it is smaller than the sum of its proper divisors (2530088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1597872 is a wasteful number, since it uses less digits than its factorization.

1597872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33300 (or 33294 counting only the distinct ones).

The product of its digits is 35280, while the sum is 39.

The square root of 1597872 is about 1264.0696183360. The cubic root of 1597872 is about 116.9088339423.

The spelling of 1597872 in words is "one million, five hundred ninety-seven thousand, eight hundred seventy-two".