86423491 has 16 divisors (see below), whose sum is σ = 108476928. Its totient is φ = 66888000.

The previous prime is 86423483. The next prime is 86423497. The reversal of 86423491 is 19432468.

It is a cyclic number.

It is not a de Polignac number, because 86423491 - 2³ = 86423483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86423491.

It is not an unprimeable number, because it can be changed into a prime (86423497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7911 + ... + 15343.

It is an arithmetic number, because the mean of its divisors is an integer number (6779808).

Almost surely, 2^86423491 is an apocalyptic number.

86423491 is a deficient number, since it is larger than the sum of its proper divisors (22053437).

86423491 is a wasteful number, since it uses less digits than its factorization.

86423491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602.

The product of its digits is 41472, while the sum is 37.

The square root of 86423491 is about 9296.4235596276. The cubic root of 86423491 is about 442.1238417544.

The spelling of 86423491 in words is "eighty-six million, four hundred twenty-three thousand, four hundred ninety-one".