855231904 has 24 divisors (see below), whose sum is σ = 1712279520. Its totient is φ = 420367296.

The previous prime is 855231889. The next prime is 855231911. The reversal of 855231904 is 409132558.

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, 224604 + ... + 228379.

It is an arithmetic number, because the mean of its divisors is an integer number (71344980).

Almost surely, 2^855231904 is an apocalyptic number.

It is an amenable number.

855231904 is an abundant number, since it is smaller than the sum of its proper divisors (857047616).

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

855231904 is a wasteful number, since it uses less digits than its factorization.

855231904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453052 (or 453044 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 855231904 is about 29244.3482403011. The cubic root of 855231904 is about 949.2077990351.

The spelling of 855231904 in words is "eight hundred fifty-five million, two hundred thirty-one thousand, nine hundred four".