86040909 has 12 divisors (see below), whose sum is σ = 124733596. Its totient is φ = 57151872.

The previous prime is 86040887. The next prime is 86040917. The reversal of 86040909 is 90904068.

It can be written as a sum of positive squares in 2 ways, for example, as 46539684 + 39501225 = 6822^2 + 6285^2 .

It is not a de Polignac number, because 86040909 - 2⁷ = 86040781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86040989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14764 + ... + 19749.

Almost surely, 2^86040909 is an apocalyptic number.

It is an amenable number.

86040909 is a deficient number, since it is larger than the sum of its proper divisors (38692687).

86040909 is a wasteful number, since it uses less digits than its factorization.

86040909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34796 (or 34793 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 86040909 is about 9275.8238987165. The cubic root of 86040909 is about 441.4704745018.

The spelling of 86040909 in words is "eighty-six million, forty thousand, nine hundred nine".