86404291 has 6 divisors (see below), whose sum is σ = 86778692. Its totient is φ = 86031240.

The previous prime is 86404247. The next prime is 86404303. The reversal of 86404291 is 19240468.

It is not a de Polignac number, because 86404291 - 2²³ = 78015683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86404391) 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 in 5 ways as a sum of consecutive naturals, for example, 151036 + ... + 151606.

Almost surely, 2^86404291 is an apocalyptic number.

86404291 is a deficient number, since it is larger than the sum of its proper divisors (374401).

86404291 is an frugal number, since it uses more digits than its factorization.

86404291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 86404291 is about 9295.3908470811. The cubic root of 86404291 is about 442.0910983172.

The spelling of 86404291 in words is "eighty-six million, four hundred four thousand, two hundred ninety-one".