86916519 has 12 divisors (see below), whose sum is σ = 125785192. Its totient is φ = 57834000.

The previous prime is 86916497. The next prime is 86916539. The reversal of 86916519 is 91561968.

It is a de Polignac number, because none of the positive numbers 2^k-86916519 is a prime.

It is a super-2 number, since 2×86916519² = 15108962550154722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86916539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4057 + ... + 13794.

Almost surely, 2^86916519 is an apocalyptic number.

86916519 is a deficient number, since it is larger than the sum of its proper divisors (38868673).

86916519 is a wasteful number, since it uses less digits than its factorization.

86916519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18398 (or 18395 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 86916519 is about 9322.9029277366. The cubic root of 86916519 is about 442.9629895008.

The spelling of 86916519 in words is "eighty-six million, nine hundred sixteen thousand, five hundred nineteen".