855483631 has 2 divisors, whose sum is σ = 855483632. Its totient is φ = 855483630.

The previous prime is 855483619. The next prime is 855483647. The reversal of 855483631 is 136384558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855483631 - 2⁹ = 855483119 is a prime.

It is a super-2 number, since 2×855483631² = 1463704485817888322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855483611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427741815 + 427741816.

It is an arithmetic number, because the mean of its divisors is an integer number (427741816).

Almost surely, 2^855483631 is an apocalyptic number.

855483631 is a deficient number, since it is larger than the sum of its proper divisors (1).

855483631 is an equidigital number, since it uses as much as digits as its factorization.

855483631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 43.

The square root of 855483631 is about 29248.6517808941. The cubic root of 855483631 is about 949.3009191160.

The spelling of 855483631 in words is "eight hundred fifty-five million, four hundred eighty-three thousand, six hundred thirty-one".