85896931 has 2 divisors, whose sum is σ = 85896932. Its totient is φ = 85896930.

The previous prime is 85896913. The next prime is 85896947. The reversal of 85896931 is 13969858.

Together with previous prime (85896913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85896931 - 2¹⁷ = 85765859 is a prime.

It is a super-2 number, since 2×85896931² = 14756565510437522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85896991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42948465 + 42948466.

It is an arithmetic number, because the mean of its divisors is an integer number (42948466).

Almost surely, 2^85896931 is an apocalyptic number.

85896931 is a deficient number, since it is larger than the sum of its proper divisors (1).

85896931 is an equidigital number, since it uses as much as digits as its factorization.

85896931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 49.

The square root of 85896931 is about 9268.0597214304. The cubic root of 85896931 is about 441.2240896758.

The spelling of 85896931 in words is "eighty-five million, eight hundred ninety-six thousand, nine hundred thirty-one".