86864617 has 4 divisors (see below), whose sum is σ = 99273856. Its totient is φ = 74455380.

The previous prime is 86864597. The next prime is 86864627. The reversal of 86864617 is 71646868.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-86864617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86864627) 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, 6204609 + ... + 6204622.

It is an arithmetic number, because the mean of its divisors is an integer number (24818464).

Almost surely, 2^86864617 is an apocalyptic number.

It is an amenable number.

86864617 is a deficient number, since it is larger than the sum of its proper divisors (12409239).

86864617 is a wasteful number, since it uses less digits than its factorization.

86864617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12409238.

The product of its digits is 387072, while the sum is 46.

The square root of 86864617 is about 9320.1189370093. The cubic root of 86864617 is about 442.8748005000.

The spelling of 86864617 in words is "eighty-six million, eight hundred sixty-four thousand, six hundred seventeen".