856593343 has 4 divisors (see below), whose sum is σ = 858729888. Its totient is φ = 854456800.

The previous prime is 856593337. The next prime is 856593373. The reversal of 856593343 is 343395658.

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 856593343 - 2²⁵ = 823038911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 856593293 and 856593302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856593373) 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, 1067671 + ... + 1068472.

It is an arithmetic number, because the mean of its divisors is an integer number (214682472).

Almost surely, 2^856593343 is an apocalyptic number.

856593343 is a deficient number, since it is larger than the sum of its proper divisors (2136545).

856593343 is a wasteful number, since it uses less digits than its factorization.

856593343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136544.

The product of its digits is 1166400, while the sum is 46.

The square root of 856593343 is about 29267.6159432230. The cubic root of 856593343 is about 949.7112115744.

The spelling of 856593343 in words is "eight hundred fifty-six million, five hundred ninety-three thousand, three hundred forty-three".