86361599 has 4 divisors (see below), whose sum is σ = 86381040. Its totient is φ = 86342160.

The previous prime is 86361571. The next prime is 86361617. The reversal of 86361599 is 99516368.

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-86361599 is a prime.

It is a Duffinian number.

Its product of digits (349920) is a multiple of the sum of its prime divisors (19440).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86361529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587 + ... + 13155.

It is an arithmetic number, because the mean of its divisors is an integer number (21595260).

Almost surely, 2^86361599 is an apocalyptic number.

86361599 is a deficient number, since it is larger than the sum of its proper divisors (19441).

86361599 is a wasteful number, since it uses less digits than its factorization.

86361599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19440.

The product of its digits is 349920, while the sum is 47.

The square root of 86361599 is about 9293.0941564153. The cubic root of 86361599 is about 442.0182745323.

The spelling of 86361599 in words is "eighty-six million, three hundred sixty-one thousand, five hundred ninety-nine".