855789916 has 12 divisors (see below), whose sum is σ = 1499385888. Its totient is φ = 427393952.

The previous prime is 855789899. The next prime is 855789931. The reversal of 855789916 is 619987558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121396 + ... + 128251.

It is an arithmetic number, because the mean of its divisors is an integer number (124948824).

Almost surely, 2^855789916 is an apocalyptic number.

It is an amenable number.

855789916 is a deficient number, since it is larger than the sum of its proper divisors (643595972).

855789916 is a wasteful number, since it uses less digits than its factorization.

855789916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250508 (or 250506 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 58.

The square root of 855789916 is about 29253.8871946960. The cubic root of 855789916 is about 949.4141969271.

The spelling of 855789916 in words is "eight hundred fifty-five million, seven hundred eighty-nine thousand, nine hundred sixteen".