849608172 has 36 divisors (see below), whose sum is σ = 2454424336. Its totient is φ = 242745120.

The previous prime is 849608153. The next prime is 849608189. The reversal of 849608172 is 271806948.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685479 + ... + 1685982.

Almost surely, 2^849608172 is an apocalyptic number.

It is an amenable number.

849608172 is an abundant number, since it is smaller than the sum of its proper divisors (1604816164).

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

849608172 is a wasteful number, since it uses less digits than its factorization.

849608172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371478 (or 3371473 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 849608172 is about 29148.0389048732. The cubic root of 849608172 is about 947.1226594345.

The spelling of 849608172 in words is "eight hundred forty-nine million, six hundred eight thousand, one hundred seventy-two".