86131393 has 4 divisors (see below), whose sum is σ = 86168880. Its totient is φ = 86093908.

The previous prime is 86131391. The next prime is 86131411. The reversal of 86131393 is 39313168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86131393 - 2¹ = 86131391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86131391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15055 + ... + 19972.

It is an arithmetic number, because the mean of its divisors is an integer number (21542220).

Almost surely, 2^86131393 is an apocalyptic number.

It is an amenable number.

86131393 is a deficient number, since it is larger than the sum of its proper divisors (37487).

86131393 is a wasteful number, since it uses less digits than its factorization.

86131393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37486.

The product of its digits is 11664, while the sum is 34.

The square root of 86131393 is about 9280.7000274764. The cubic root of 86131393 is about 441.6251761824.

The spelling of 86131393 in words is "eighty-six million, one hundred thirty-one thousand, three hundred ninety-three".