857029092 has 24 divisors (see below), whose sum is σ = 2117366496. Its totient is φ = 268871808.

The previous prime is 857029057. The next prime is 857029097. The reversal of 857029092 is 290920758.

857029092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (857029097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2100358 + ... + 2100765.

It is an arithmetic number, because the mean of its divisors is an integer number (88223604).

Almost surely, 2^857029092 is an apocalyptic number.

It is an amenable number.

857029092 is an abundant number, since it is smaller than the sum of its proper divisors (1260337404).

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

857029092 is a wasteful number, since it uses less digits than its factorization.

857029092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201147 (or 4201145 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 857029092 is about 29275.0592142868. The cubic root of 857029092 is about 949.8722236272.

The spelling of 857029092 in words is "eight hundred fifty-seven million, twenty-nine thousand, ninety-two".