86133391 has 8 divisors (see below), whose sum is σ = 87885104. Its totient is φ = 84395520.

The previous prime is 86133389. The next prime is 86133401. The reversal of 86133391 is 19333168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86133391 - 2¹ = 86133389 is a prime.

It is a super-2 number, since 2×86133391² = 14837922090317762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86133371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9601 + ... + 16261.

It is an arithmetic number, because the mean of its divisors is an integer number (10985638).

Almost surely, 2^86133391 is an apocalyptic number.

86133391 is a deficient number, since it is larger than the sum of its proper divisors (1751713).

86133391 is a wasteful number, since it uses less digits than its factorization.

86133391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6921.

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

The square root of 86133391 is about 9280.8076695943. The cubic root of 86133391 is about 441.6285909663.

The spelling of 86133391 in words is "eighty-six million, one hundred thirty-three thousand, three hundred ninety-one".