1897336616 has 32 divisors (see below), whose sum is σ = 4175610240. Its totient is φ = 791166528.

The previous prime is 1897336583. The next prime is 1897336627. The reversal of 1897336616 is 6166337981.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455780 + ... + 459923.

It is an arithmetic number, because the mean of its divisors is an integer number (130487820).

Almost surely, 2^1897336616 is an apocalyptic number.

It is an amenable number.

1897336616 is an abundant number, since it is smaller than the sum of its proper divisors (2278273624).

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

1897336616 is a wasteful number, since it uses less digits than its factorization.

1897336616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915753 (or 915749 counting only the distinct ones).

The product of its digits is 979776, while the sum is 50.

The square root of 1897336616 is about 43558.4276116574. The cubic root of 1897336616 is about 1237.9833279326.

The spelling of 1897336616 in words is "one billion, eight hundred ninety-seven million, three hundred thirty-six thousand, six hundred sixteen".