857576228 has 6 divisors (see below), whose sum is σ = 1500758406. Its totient is φ = 428788112.

The previous prime is 857576201. The next prime is 857576231. The reversal of 857576228 is 822675758.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 678498304 + 179077924 = 26048^2 + 13382^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107197025 + ... + 107197032.

It is an arithmetic number, because the mean of its divisors is an integer number (250126401).

Almost surely, 2^857576228 is an apocalyptic number.

It is an amenable number.

857576228 is a deficient number, since it is larger than the sum of its proper divisors (643182178).

857576228 is a wasteful number, since it uses less digits than its factorization.

857576228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214394061 (or 214394059 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 50.

The square root of 857576228 is about 29284.4024695741. The cubic root of 857576228 is about 950.0743166239.

The spelling of 857576228 in words is "eight hundred fifty-seven million, five hundred seventy-six thousand, two hundred twenty-eight".