1897285896 has 64 divisors (see below), whose sum is σ = 5749358400. Its totient is φ = 574934400.

The previous prime is 1897285877. The next prime is 1897285913. The reversal of 1897285896 is 6985827981.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396885 + ... + 401636.

It is an arithmetic number, because the mean of its divisors is an integer number (89833725).

Almost surely, 2^1897285896 is an apocalyptic number.

It is an amenable number.

1897285896 is an abundant number, since it is smaller than the sum of its proper divisors (3852072504).

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

1897285896 is a wasteful number, since it uses less digits than its factorization.

1897285896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798547 (or 798537 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 63.

The square root of 1897285896 is about 43557.8454012592. The cubic root of 1897285896 is about 1237.9722964910.

The spelling of 1897285896 in words is "one billion, eight hundred ninety-seven million, two hundred eighty-five thousand, eight hundred ninety-six".