86607839 has 4 divisors (see below), whose sum is σ = 86636400. Its totient is φ = 86579280.

The previous prime is 86607827. The next prime is 86607841. The reversal of 86607839 is 93870668.

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 86607839 - 2⁴ = 86607823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86607793 and 86607802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86607239) 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, 9107 + ... + 16004.

It is an arithmetic number, because the mean of its divisors is an integer number (21659100).

Almost surely, 2^86607839 is an apocalyptic number.

86607839 is a deficient number, since it is larger than the sum of its proper divisors (28561).

86607839 is a wasteful number, since it uses less digits than its factorization.

86607839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28560.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 86607839 is about 9306.3332736368. Note that the first 3 decimals coincide. The cubic root of 86607839 is about 442.4379799658.

The spelling of 86607839 in words is "eighty-six million, six hundred seven thousand, eight hundred thirty-nine".