86597887 has 2 divisors, whose sum is σ = 86597888. Its totient is φ = 86597886.

The previous prime is 86597869. The next prime is 86597893. The reversal of 86597887 is 78879568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86597887 - 2¹⁹ = 86073599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86597827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43298943 + 43298944.

It is an arithmetic number, because the mean of its divisors is an integer number (43298944).

Almost surely, 2^86597887 is an apocalyptic number.

86597887 is a deficient number, since it is larger than the sum of its proper divisors (1).

86597887 is an equidigital number, since it uses as much as digits as its factorization.

86597887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 58.

The square root of 86597887 is about 9305.7985686345. The cubic root of 86597887 is about 442.4210326490.

The spelling of 86597887 in words is "eighty-six million, five hundred ninety-seven thousand, eight hundred eighty-seven".