854656491 has 12 divisors (see below), whose sum is σ = 1233942648. Its totient is φ = 525942144.

The previous prime is 854656469. The next prime is 854656493. The reversal of 854656491 is 194656458.

It is not a de Polignac number, because 854656491 - 2⁵ = 854656459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 854656491.

It is not an unprimeable number, because it can be changed into a prime (854656493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 842350 + ... + 843363.

It is an arithmetic number, because the mean of its divisors is an integer number (102828554).

Almost surely, 2^854656491 is an apocalyptic number.

854656491 is a deficient number, since it is larger than the sum of its proper divisors (379286157).

854656491 is a wasteful number, since it uses less digits than its factorization.

854656491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685742 (or 1685729 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The square root of 854656491 is about 29234.5085643662. The cubic root of 854656491 is about 948.9948708048.

The spelling of 854656491 in words is "eight hundred fifty-four million, six hundred fifty-six thousand, four hundred ninety-one".