855189312 has 112 divisors (see below), whose sum is σ = 2437619712. Its totient is φ = 263831040.

The previous prime is 855189287. The next prime is 855189319. The reversal of 855189312 is 213981558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855189319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133773 + ... + 140019.

Almost surely, 2^855189312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855189312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218809856).

855189312 is an abundant number, since it is smaller than the sum of its proper divisors (1582430400).

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

855189312 is a wasteful number, since it uses less digits than its factorization.

855189312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316 (or 6306 counting only the distinct ones).

The product of its digits is 86400, while the sum is 42.

The square root of 855189312 is about 29243.6200221518. The cubic root of 855189312 is about 949.1920413871.

It can be divided in two parts, 85518 and 9312, that added together give a triangular number (94830 = T₄₃₅).

The spelling of 855189312 in words is "eight hundred fifty-five million, one hundred eighty-nine thousand, three hundred twelve".