86545689 has 4 divisors (see below), whose sum is σ = 115394256. Its totient is φ = 57697124.

The previous prime is 86545687. The next prime is 86545717. The reversal of 86545689 is 98654568.

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 86545689 - 2¹ = 86545687 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86545687) 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, 14424279 + ... + 14424284.

It is an arithmetic number, because the mean of its divisors is an integer number (28848564).

Almost surely, 2^86545689 is an apocalyptic number.

It is an amenable number.

86545689 is a deficient number, since it is larger than the sum of its proper divisors (28848567).

86545689 is a wasteful number, since it uses less digits than its factorization.

86545689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28848566.

The product of its digits is 2073600, while the sum is 51.

The square root of 86545689 is about 9302.9935504654. The cubic root of 86545689 is about 442.3321231102.

The spelling of 86545689 in words is "eighty-six million, five hundred forty-five thousand, six hundred eighty-nine".