859031 has 2 divisors, whose sum is σ = 859032. Its totient is φ = 859030.

The previous prime is 859003. The next prime is 859037. The reversal of 859031 is 130958.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-859031 is a prime.

It is a super-2 number, since 2×859031² = 1475868517922, which contains 22 as substring.

It is a Chen prime.

It is equal to p₆₈₂₇₃ and since 859031 and 68273 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (859037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429515 + 429516.

It is an arithmetic number, because the mean of its divisors is an integer number (429516).

2⁸⁵⁹⁰³¹ is an apocalyptic number.

859031 is a deficient number, since it is larger than the sum of its proper divisors (1).

859031 is an equidigital number, since it uses as much as digits as its factorization.

859031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 859031 is about 926.8392525136. The cubic root of 859031 is about 95.0611240985.

Adding to 859031 its reverse (130958), we get a palindrome (989989).

The spelling of 859031 in words is "eight hundred fifty-nine thousand, thirty-one".