86445199 has 2 divisors, whose sum is σ = 86445200. Its totient is φ = 86445198.

The previous prime is 86445137. The next prime is 86445211. The reversal of 86445199 is 99154468.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86445199 - 2⁷ = 86445071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86445599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43222599 + 43222600.

It is an arithmetic number, because the mean of its divisors is an integer number (43222600).

Almost surely, 2^86445199 is an apocalyptic number.

86445199 is a deficient number, since it is larger than the sum of its proper divisors (1).

86445199 is an equidigital number, since it uses as much as digits as its factorization.

86445199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 86445199 is about 9297.5910320900. The cubic root of 86445199 is about 442.1608564626.

The spelling of 86445199 in words is "eighty-six million, four hundred forty-five thousand, one hundred ninety-nine".