849172084 has 24 divisors (see below), whose sum is σ = 1573054560. Its totient is φ = 400409184.

The previous prime is 849172069. The next prime is 849172123. The reversal of 849172084 is 480271948.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 849172084.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80134 + ... + 90109.

It is an arithmetic number, because the mean of its divisors is an integer number (65543940).

Almost surely, 2^849172084 is an apocalyptic number.

It is an amenable number.

849172084 is a deficient number, since it is larger than the sum of its proper divisors (723882476).

849172084 is a wasteful number, since it uses less digits than its factorization.

849172084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170319 (or 170317 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 849172084 is about 29140.5573728438. The cubic root of 849172084 is about 946.9605849133.

The spelling of 849172084 in words is "eight hundred forty-nine million, one hundred seventy-two thousand, eighty-four".