86873019 has 4 divisors (see below), whose sum is σ = 115830696. Its totient is φ = 57915344.

The previous prime is 86873011. The next prime is 86873021. The reversal of 86873019 is 91037868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86873019 - 2³ = 86873011 is a prime.

It is a super-3 number, since 3×86873019³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (86873011) 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, 14478834 + ... + 14478839.

It is an arithmetic number, because the mean of its divisors is an integer number (28957674).

Almost surely, 2^86873019 is an apocalyptic number.

86873019 is a deficient number, since it is larger than the sum of its proper divisors (28957677).

86873019 is a wasteful number, since it uses less digits than its factorization.

86873019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28957676.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 86873019 is about 9320.5696714310. The cubic root of 86873019 is about 442.8890790952.

The spelling of 86873019 in words is "eighty-six million, eight hundred seventy-three thousand, nineteen".