86509369 has 4 divisors (see below), whose sum is σ = 86566144. Its totient is φ = 86452596.

The previous prime is 86509363. The next prime is 86509373. The reversal of 86509369 is 96390568.

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 a cyclic number.

It is not a de Polignac number, because 86509369 - 2¹⁵ = 86476601 is a prime.

It is a super-2 number, since 2×86509369² = 14967741849556322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86509363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26037 + ... + 29170.

It is an arithmetic number, because the mean of its divisors is an integer number (21641536).

Almost surely, 2^86509369 is an apocalyptic number.

It is an amenable number.

86509369 is a deficient number, since it is larger than the sum of its proper divisors (56775).

86509369 is a wasteful number, since it uses less digits than its factorization.

86509369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56774.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 86509369 is about 9301.0412857916. The cubic root of 86509369 is about 442.2702376838.

The spelling of 86509369 in words is "eighty-six million, five hundred nine thousand, three hundred sixty-nine".