86818673 has 4 divisors (see below), whose sum is σ = 86917440. Its totient is φ = 86719908.

The previous prime is 86818661. The next prime is 86818723. The reversal of 86818673 is 37681868.

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 86818673 - 2¹⁰ = 86817649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86818273) 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, 48053 + ... + 49826.

It is an arithmetic number, because the mean of its divisors is an integer number (21729360).

Almost surely, 2^86818673 is an apocalyptic number.

It is an amenable number.

86818673 is a deficient number, since it is larger than the sum of its proper divisors (98767).

86818673 is an equidigital number, since it uses as much as digits as its factorization.

86818673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98766.

The product of its digits is 387072, while the sum is 47.

The square root of 86818673 is about 9317.6538355962. The cubic root of 86818673 is about 442.7967056864.

The spelling of 86818673 in words is "eighty-six million, eight hundred eighteen thousand, six hundred seventy-three".