86743239 has 16 divisors (see below), whose sum is σ = 130243584. Its totient is φ = 50875200.

The previous prime is 86743213. The next prime is 86743253. The reversal of 86743239 is 93234768.

It is not a de Polignac number, because 86743239 - 2⁹ = 86742727 is a prime.

It is a super-2 number, since 2×86743239² = 15048779024422242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86743239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86743259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41374 + ... + 43419.

It is an arithmetic number, because the mean of its divisors is an integer number (8140224).

Almost surely, 2^86743239 is an apocalyptic number.

86743239 is a deficient number, since it is larger than the sum of its proper divisors (43500345).

86743239 is a wasteful number, since it uses less digits than its factorization.

86743239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84838.

The product of its digits is 217728, while the sum is 42.

The square root of 86743239 is about 9313.6050485298. The cubic root of 86743239 is about 442.6684245068.

The spelling of 86743239 in words is "eighty-six million, seven hundred forty-three thousand, two hundred thirty-nine".