86133839 has 4 divisors (see below), whose sum is σ = 93964200. Its totient is φ = 78303480.

The previous prime is 86133833. The next prime is 86133847. The reversal of 86133839 is 93833168.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86133839 - 2⁸ = 86133583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86133796 and 86133805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86133833) 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, 3915164 + ... + 3915185.

It is an arithmetic number, because the mean of its divisors is an integer number (23491050).

Almost surely, 2^86133839 is an apocalyptic number.

86133839 is a deficient number, since it is larger than the sum of its proper divisors (7830361).

86133839 is a wasteful number, since it uses less digits than its factorization.

86133839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7830360.

The product of its digits is 93312, while the sum is 41.

The square root of 86133839 is about 9280.8318053933. The cubic root of 86133839 is about 441.6293566363.

The spelling of 86133839 in words is "eighty-six million, one hundred thirty-three thousand, eight hundred thirty-nine".