855537984 has 112 divisors (see below), whose sum is σ = 2874467200. Its totient is φ = 244435968.

The previous prime is 855537983. The next prime is 855537989. The reversal of 855537984 is 489735558.

855537984 is a `hidden beast` number, since 8 + 5 + 553 + 7 + 9 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 855537984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855537983) 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, 23269 + ... + 47460.

Almost surely, 2^855537984 is an apocalyptic number.

855537984 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

855537984 is an abundant number, since it is smaller than the sum of its proper divisors (2018929216).

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

855537984 is a wasteful number, since it uses less digits than its factorization.

855537984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70757 (or 70741 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The square root of 855537984 is about 29249.5809200747. The cubic root of 855537984 is about 949.3210232451.

The spelling of 855537984 in words is "eight hundred fifty-five million, five hundred thirty-seven thousand, nine hundred eighty-four".