856878483 has 4 divisors (see below), whose sum is σ = 1142504648. Its totient is φ = 571252320.

The previous prime is 856878443. The next prime is 856878487. The reversal of 856878483 is 384878658.

It is a happy number.

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

It is not a de Polignac number, because 856878483 - 2⁹ = 856877971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856878487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142813078 + ... + 142813083.

It is an arithmetic number, because the mean of its divisors is an integer number (285626162).

Almost surely, 2^856878483 is an apocalyptic number.

856878483 is a deficient number, since it is larger than the sum of its proper divisors (285626165).

856878483 is a wasteful number, since it uses less digits than its factorization.

856878483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285626164.

The product of its digits is 10321920, while the sum is 57.

The square root of 856878483 is about 29272.4867922081. The cubic root of 856878483 is about 949.8165788080.

The spelling of 856878483 in words is "eight hundred fifty-six million, eight hundred seventy-eight thousand, four hundred eighty-three".