849855564 has 36 divisors (see below), whose sum is σ = 2227813224. Its totient is φ = 283284864.

The previous prime is 849855547. The next prime is 849855631. The reversal of 849855564 is 465558948.

849855564 is a `hidden beast` number, since 8 + 4 + 9 + 85 + 556 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 849855564.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436197 + ... + 438140.

Almost surely, 2^849855564 is an apocalyptic number.

It is an amenable number.

849855564 is an abundant number, since it is smaller than the sum of its proper divisors (1377957660).

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

849855564 is a wasteful number, since it uses less digits than its factorization.

849855564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874356 (or 874342 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 54.

The square root of 849855564 is about 29152.2823120249. The cubic root of 849855564 is about 947.2145793877.

The spelling of 849855564 in words is "eight hundred forty-nine million, eight hundred fifty-five thousand, five hundred sixty-four".