86472839 has 8 divisors (see below), whose sum is σ = 88623072. Its totient is φ = 84341920.

The previous prime is 86472833. The next prime is 86472851. The reversal of 86472839 is 93827468.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86472839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86472793 and 86472802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86472833) 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, 4454 + ... + 13884.

It is an arithmetic number, because the mean of its divisors is an integer number (11077884).

Almost surely, 2^86472839 is an apocalyptic number.

86472839 is a deficient number, since it is larger than the sum of its proper divisors (2150233).

86472839 is a wasteful number, since it uses less digits than its factorization.

86472839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657.

The product of its digits is 580608, while the sum is 47.

The square root of 86472839 is about 9299.0773198205. The cubic root of 86472839 is about 442.2079769655.

The spelling of 86472839 in words is "eighty-six million, four hundred seventy-two thousand, eight hundred thirty-nine".