859593431 has 2 divisors, whose sum is σ = 859593432. Its totient is φ = 859593430.

The previous prime is 859593419. The next prime is 859593439. The reversal of 859593431 is 134395958.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-859593431 is a prime.

It is a super-2 number, since 2×859593431² = 1477801733236703522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (859593439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429796715 + 429796716.

It is an arithmetic number, because the mean of its divisors is an integer number (429796716).

Almost surely, 2^859593431 is an apocalyptic number.

859593431 is a deficient number, since it is larger than the sum of its proper divisors (1).

859593431 is an equidigital number, since it uses as much as digits as its factorization.

859593431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 47.

The square root of 859593431 is about 29318.8238338444. The cubic root of 859593431 is about 950.8186594172.

The spelling of 859593431 in words is "eight hundred fifty-nine million, five hundred ninety-three thousand, four hundred thirty-one".