856467231 has 16 divisors (see below), whose sum is σ = 1190335104. Its totient is φ = 547249824.

The previous prime is 856467197. The next prime is 856467251. The reversal of 856467231 is 132764658.

It is not a de Polignac number, because 856467231 - 2⁶ = 856467167 is a prime.

It is a super-2 number, since 2×856467231² = 1467072235553614722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856467251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50145 + ... + 65018.

It is an arithmetic number, because the mean of its divisors is an integer number (74395944).

Almost surely, 2^856467231 is an apocalyptic number.

856467231 is a deficient number, since it is larger than the sum of its proper divisors (333867873).

856467231 is a wasteful number, since it uses less digits than its factorization.

856467231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115270.

The product of its digits is 241920, while the sum is 42.

The square root of 856467231 is about 29265.4614007707. The cubic root of 856467231 is about 949.6646021926.

The spelling of 856467231 in words is "eight hundred fifty-six million, four hundred sixty-seven thousand, two hundred thirty-one".