849786172 has 24 divisors (see below), whose sum is σ = 1603581840. Its totient is φ = 392711040.

The previous prime is 849786169. The next prime is 849786193. The reversal of 849786172 is 271687948.

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, 133243 + ... + 139474.

It is an arithmetic number, because the mean of its divisors is an integer number (66815910).

Almost surely, 2^849786172 is an apocalyptic number.

849786172 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

849786172 is a deficient number, since it is larger than the sum of its proper divisors (753795668).

849786172 is a wasteful number, since it uses less digits than its factorization.

849786172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272781 (or 272779 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The square root of 849786172 is about 29151.0921236238. The cubic root of 849786172 is about 947.1887981820.

The spelling of 849786172 in words is "eight hundred forty-nine million, seven hundred eighty-six thousand, one hundred seventy-two".