86485591 has 2 divisors, whose sum is σ = 86485592. Its totient is φ = 86485590.

The previous prime is 86485583. The next prime is 86485621. The reversal of 86485591 is 19558468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86485591 - 2³ = 86485583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86485541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43242795 + 43242796.

It is an arithmetic number, because the mean of its divisors is an integer number (43242796).

Almost surely, 2^86485591 is an apocalyptic number.

86485591 is a deficient number, since it is larger than the sum of its proper divisors (1).

86485591 is an equidigital number, since it uses as much as digits as its factorization.

86485591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 46.

The square root of 86485591 is about 9299.7629539682. The cubic root of 86485591 is about 442.2297131122.

The spelling of 86485591 in words is "eighty-six million, four hundred eighty-five thousand, five hundred ninety-one".