1997800596 has 36 divisors (see below), whose sum is σ = 5509087584. Its totient is φ = 605394000.

The previous prime is 1997800579. The next prime is 1997800639. The reversal of 1997800596 is 6950087991.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2522080 + ... + 2522871.

Almost surely, 2^1997800596 is an apocalyptic number.

It is an amenable number.

1997800596 is an abundant number, since it is smaller than the sum of its proper divisors (3511286988).

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

1997800596 is a wasteful number, since it uses less digits than its factorization.

1997800596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044972 (or 5044967 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The square root of 1997800596 is about 44696.7627015649. The cubic root of 1997800596 is about 1259.4590345943.

The spelling of 1997800596 in words is "one billion, nine hundred ninety-seven million, eight hundred thousand, five hundred ninety-six".