86235791 has 2 divisors, whose sum is σ = 86235792. Its totient is φ = 86235790.

The previous prime is 86235731. The next prime is 86235797. The reversal of 86235791 is 19753268.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86235791 - 2⁶ = 86235727 is a prime.

It is a super-2 number, since 2×86235791² = 14873223298791362, 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 (86235797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43117895 + 43117896.

It is an arithmetic number, because the mean of its divisors is an integer number (43117896).

Almost surely, 2^86235791 is an apocalyptic number.

86235791 is a deficient number, since it is larger than the sum of its proper divisors (1).

86235791 is an equidigital number, since it uses as much as digits as its factorization.

86235791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 86235791 is about 9286.3227921498. The cubic root of 86235791 is about 441.8035322518.

The spelling of 86235791 in words is "eighty-six million, two hundred thirty-five thousand, seven hundred ninety-one".