1997592 has 16 divisors (see below), whose sum is σ = 4994040. Its totient is φ = 665856.

The previous prime is 1997591. The next prime is 1997599. The reversal of 1997592 is 2957991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997591) 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, 41593 + ... + 41640.

2^1997592 is an apocalyptic number.

1997592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1997592 is an abundant number, since it is smaller than the sum of its proper divisors (2996448).

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

1997592 is a wasteful number, since it uses less digits than its factorization.

1997592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83242 (or 83238 counting only the distinct ones).

The product of its digits is 51030, while the sum is 42.

The square root of 1997592 is about 1413.3619493958. The cubic root of 1997592 is about 125.9415198511.

The spelling of 1997592 in words is "one million, nine hundred ninety-seven thousand, five hundred ninety-two".