86851673 has 4 divisors (see below), whose sum is σ = 88075008. Its totient is φ = 85628340.

The previous prime is 86851669. The next prime is 86851729. The reversal of 86851673 is 37615868.

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 86851673 - 2² = 86851669 is a prime.

It is a super-3 number, since 3×86851673³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86851613) 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, 611561 + ... + 611702.

It is an arithmetic number, because the mean of its divisors is an integer number (22018752).

Almost surely, 2^86851673 is an apocalyptic number.

It is an amenable number.

86851673 is a deficient number, since it is larger than the sum of its proper divisors (1223335).

86851673 is a wasteful number, since it uses less digits than its factorization.

86851673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223334.

The product of its digits is 241920, while the sum is 44.

The square root of 86851673 is about 9319.4244993991. The cubic root of 86851673 is about 442.8528013003.

The spelling of 86851673 in words is "eighty-six million, eight hundred fifty-one thousand, six hundred seventy-three".