86427739 has 4 divisors (see below), whose sum is σ = 86517720. Its totient is φ = 86337760.

The previous prime is 86427709. The next prime is 86427749. The reversal of 86427739 is 93772468.

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 86427739 - 2⁵ = 86427707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86427709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43534 + ... + 45475.

It is an arithmetic number, because the mean of its divisors is an integer number (21629430).

Almost surely, 2^86427739 is an apocalyptic number.

86427739 is a deficient number, since it is larger than the sum of its proper divisors (89981).

86427739 is an equidigital number, since it uses as much as digits as its factorization.

86427739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89980.

The product of its digits is 508032, while the sum is 46.

The square root of 86427739 is about 9296.6520317800. The cubic root of 86427739 is about 442.1310855847.

The spelling of 86427739 in words is "eighty-six million, four hundred twenty-seven thousand, seven hundred thirty-nine".