86373561 has 4 divisors (see below), whose sum is σ = 115164752. Its totient is φ = 57582372.

The previous prime is 86373509. The next prime is 86373587. The reversal of 86373561 is 16537368.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 86373561 - 2¹⁹ = 85849273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86373361) 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, 14395591 + ... + 14395596.

It is an arithmetic number, because the mean of its divisors is an integer number (28791188).

Almost surely, 2^86373561 is an apocalyptic number.

It is an amenable number.

86373561 is a deficient number, since it is larger than the sum of its proper divisors (28791191).

86373561 is a wasteful number, since it uses less digits than its factorization.

86373561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28791190.

The product of its digits is 90720, while the sum is 39.

The square root of 86373561 is about 9293.7377303214. The cubic root of 86373561 is about 442.0386816675.

The spelling of 86373561 in words is "eighty-six million, three hundred seventy-three thousand, five hundred sixty-one".