86270939 has 4 divisors (see below), whose sum is σ = 88602624. Its totient is φ = 83939256.

The previous prime is 86270917. The next prime is 86270957. The reversal of 86270939 is 93907268.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86270939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86270939.

It is not an unprimeable number, because it can be changed into a prime (86270839) 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, 1165787 + ... + 1165860.

It is an arithmetic number, because the mean of its divisors is an integer number (22150656).

Almost surely, 2^86270939 is an apocalyptic number.

86270939 is a deficient number, since it is larger than the sum of its proper divisors (2331685).

86270939 is a wasteful number, since it uses less digits than its factorization.

86270939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331684.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 86270939 is about 9288.2150599564. The cubic root of 86270939 is about 441.8635475546.

The spelling of 86270939 in words is "eighty-six million, two hundred seventy thousand, nine hundred thirty-nine".