86191337 has 4 divisors (see below), whose sum is σ = 86349456. Its totient is φ = 86033220.

The previous prime is 86191333. The next prime is 86191351. The reversal of 86191337 is 73319168.

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 86191337 - 2² = 86191333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86191337.

It is not an unprimeable number, because it can be changed into a prime (86191331) 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 3 ways as a sum of consecutive naturals, for example, 78239 + ... + 79332.

It is an arithmetic number, because the mean of its divisors is an integer number (21587364).

Almost surely, 2^86191337 is an apocalyptic number.

It is an amenable number.

86191337 is a deficient number, since it is larger than the sum of its proper divisors (158119).

86191337 is a wasteful number, since it uses less digits than its factorization.

86191337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158118.

The product of its digits is 27216, while the sum is 38.

The square root of 86191337 is about 9283.9289635369. The cubic root of 86191337 is about 441.7276035695.

The spelling of 86191337 in words is "eighty-six million, one hundred ninety-one thousand, three hundred thirty-seven".