856423527 has 8 divisors (see below), whose sum is σ = 1161252480. Its totient is φ = 561271800.

The previous prime is 856423511. The next prime is 856423553. The reversal of 856423527 is 725324658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 856423527 - 2⁴ = 856423511 is a prime.

It is a super-2 number, since 2×856423527² = 1466922515198239458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856423507) 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, 2419099 + ... + 2419452.

It is an arithmetic number, because the mean of its divisors is an integer number (145156560).

Almost surely, 2^856423527 is an apocalyptic number.

856423527 is a deficient number, since it is larger than the sum of its proper divisors (304828953).

856423527 is a wasteful number, since it uses less digits than its factorization.

856423527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4838613.

The product of its digits is 403200, while the sum is 42.

The square root of 856423527 is about 29264.7147090143. The cubic root of 856423527 is about 949.6484486858.

The spelling of 856423527 in words is "eight hundred fifty-six million, four hundred twenty-three thousand, five hundred twenty-seven".