856108463 has 4 divisors (see below), whose sum is σ = 978409680. Its totient is φ = 733807248.

The previous prime is 856108447. The next prime is 856108471. The reversal of 856108463 is 364801658.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 856108463 - 2⁴ = 856108447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 856108463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856108483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61150598 + ... + 61150611.

It is an arithmetic number, because the mean of its divisors is an integer number (244602420).

Almost surely, 2^856108463 is an apocalyptic number.

856108463 is a deficient number, since it is larger than the sum of its proper divisors (122301217).

856108463 is a wasteful number, since it uses less digits than its factorization.

856108463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122301216.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 856108463 is about 29259.3312124525. The cubic root of 856108463 is about 949.5319811020.

The spelling of 856108463 in words is "eight hundred fifty-six million, one hundred eight thousand, four hundred sixty-three".