856249294 has 4 divisors (see below), whose sum is σ = 1284373944. Its totient is φ = 428124646.

The previous prime is 856249283. The next prime is 856249297. The reversal of 856249294 is 492942658.

856249294 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856249297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214062322 + ... + 214062325.

It is an arithmetic number, because the mean of its divisors is an integer number (321093486).

Almost surely, 2^856249294 is an apocalyptic number.

856249294 is a deficient number, since it is larger than the sum of its proper divisors (428124650).

856249294 is a wasteful number, since it uses less digits than its factorization.

856249294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428124649.

The product of its digits is 1244160, while the sum is 49.

The square root of 856249294 is about 29261.7377132664. The cubic root of 856249294 is about 949.5840446790.

The spelling of 856249294 in words is "eight hundred fifty-six million, two hundred forty-nine thousand, two hundred ninety-four".