86031491 has 16 divisors (see below), whose sum is σ = 106298304. Its totient is φ = 67803264.

The previous prime is 86031469. The next prime is 86031503. The reversal of 86031491 is 19413068.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86031491 - 2¹⁰ = 86030467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86031461) 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 15 ways as a sum of consecutive naturals, for example, 23501 + ... + 26913.

It is an arithmetic number, because the mean of its divisors is an integer number (6643644).

Almost surely, 2^86031491 is an apocalyptic number.

86031491 is a deficient number, since it is larger than the sum of its proper divisors (20266813).

86031491 is a wasteful number, since it uses less digits than its factorization.

86031491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 86031491 is about 9275.3162210245. The cubic root of 86031491 is about 441.4543661928.

The spelling of 86031491 in words is "eighty-six million, thirty-one thousand, four hundred ninety-one".