86305479 has 32 divisors (see below), whose sum is σ = 129366720. Its totient is φ = 50813952.

The previous prime is 86305463. The next prime is 86305487. The reversal of 86305479 is 97450368.

It is a happy number.

It is not a de Polignac number, because 86305479 - 2⁴ = 86305463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86305479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86305579) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154669 + ... + 155225.

It is an arithmetic number, because the mean of its divisors is an integer number (4042710).

Almost surely, 2^86305479 is an apocalyptic number.

86305479 is a deficient number, since it is larger than the sum of its proper divisors (43061241).

86305479 is a wasteful number, since it uses less digits than its factorization.

86305479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 86305479 is about 9290.0742192945. The cubic root of 86305479 is about 441.9225088177.

The spelling of 86305479 in words is "eighty-six million, three hundred five thousand, four hundred seventy-nine".