857026172 has 12 divisors (see below), whose sum is σ = 1504916616. Its totient is φ = 427050000.

The previous prime is 857026171. The next prime is 857026201. The reversal of 857026172 is 271620758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857026171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364454 + ... + 366797.

It is an arithmetic number, because the mean of its divisors is an integer number (125409718).

Almost surely, 2^857026172 is an apocalyptic number.

It is an amenable number.

857026172 is a deficient number, since it is larger than the sum of its proper divisors (647890444).

857026172 is a wasteful number, since it uses less digits than its factorization.

857026172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731548 (or 731546 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 857026172 is about 29275.0093424409. The cubic root of 857026172 is about 949.8711448501.

The spelling of 857026172 in words is "eight hundred fifty-seven million, twenty-six thousand, one hundred seventy-two".