855486831 has 8 divisors (see below), whose sum is σ = 1142699184. Its totient is φ = 569299520.

The previous prime is 855486829. The next prime is 855486847. The reversal of 855486831 is 138684558.

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

It is a cyclic number.

It is not a de Polignac number, because 855486831 - 2¹ = 855486829 is a prime.

It is a super-2 number, since 2×855486831² = 1463715436028845122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855486851) 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, 254310 + ... + 257651.

It is an arithmetic number, because the mean of its divisors is an integer number (142837398).

Almost surely, 2^855486831 is an apocalyptic number.

855486831 is a deficient number, since it is larger than the sum of its proper divisors (287212353).

855486831 is a wasteful number, since it uses less digits than its factorization.

855486831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512521.

The product of its digits is 921600, while the sum is 48.

The square root of 855486831 is about 29248.7064842191. The cubic root of 855486831 is about 949.3021027580.

The spelling of 855486831 in words is "eight hundred fifty-five million, four hundred eighty-six thousand, eight hundred thirty-one".