856246339 has 16 divisors (see below), whose sum is σ = 933055200. Its totient is φ = 781042176.

The previous prime is 856246309. The next prime is 856246367. The reversal of 856246339 is 933642658.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 856246339 - 2¹³ = 856238147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856246309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 839772 + ... + 840790.

It is an arithmetic number, because the mean of its divisors is an integer number (58315950).

Almost surely, 2^856246339 is an apocalyptic number.

856246339 is a deficient number, since it is larger than the sum of its proper divisors (76808861).

856246339 is a wasteful number, since it uses less digits than its factorization.

856246339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734.

The product of its digits is 933120, while the sum is 46.

The square root of 856246339 is about 29261.6872206645. The cubic root of 856246339 is about 949.5829523086.

The spelling of 856246339 in words is "eight hundred fifty-six million, two hundred forty-six thousand, three hundred thirty-nine".