855988684 has 12 divisors (see below), whose sum is σ = 1576821400. Its totient is φ = 405468288.

The previous prime is 855988681. The next prime is 855988687. The reversal of 855988684 is 486889558.

It is an interprime number because it is at equal distance from previous prime (855988681) and next prime (855988687).

It is not an unprimeable number, because it can be changed into a prime (855988681) 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, 5631429 + ... + 5631580.

Almost surely, 2^855988684 is an apocalyptic number.

It is an amenable number.

855988684 is a deficient number, since it is larger than the sum of its proper divisors (720832716).

855988684 is a wasteful number, since it uses less digits than its factorization.

855988684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11263032 (or 11263030 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 61.

The square root of 855988684 is about 29257.2842895577. The cubic root of 855988684 is about 949.4876957103.

The spelling of 855988684 in words is "eight hundred fifty-five million, nine hundred eighty-eight thousand, six hundred eighty-four".