86497849 has 2 divisors, whose sum is σ = 86497850. Its totient is φ = 86497848.

The previous prime is 86497769. The next prime is 86497883. The reversal of 86497849 is 94879468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62173225 + 24324624 = 7885^2 + 4932^2 .

It is a cyclic number.

It is not a de Polignac number, because 86497849 - 2⁷ = 86497721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86497849.

It is not a weakly prime, because it can be changed into another prime (86497949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43248924 + 43248925.

It is an arithmetic number, because the mean of its divisors is an integer number (43248925).

Almost surely, 2^86497849 is an apocalyptic number.

It is an amenable number.

86497849 is a deficient number, since it is larger than the sum of its proper divisors (1).

86497849 is an equidigital number, since it uses as much as digits as its factorization.

86497849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 55.

The square root of 86497849 is about 9300.4219796738. The cubic root of 86497849 is about 442.2506052079.

The spelling of 86497849 in words is "eighty-six million, four hundred ninety-seven thousand, eight hundred forty-nine".