86815714 has 8 divisors (see below), whose sum is σ = 130294188. Its totient is φ = 43384320.

The previous prime is 86815711. The next prime is 86815783. The reversal of 86815714 is 41751868.

It can be written as a sum of positive squares in 2 ways, for example, as 83411689 + 3404025 = 9133^2 + 1845^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (86815711) 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, 6727 + ... + 14794.

Almost surely, 2^86815714 is an apocalyptic number.

86815714 is a deficient number, since it is larger than the sum of its proper divisors (43478474).

86815714 is a wasteful number, since it uses less digits than its factorization.

86815714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23540.

The product of its digits is 53760, while the sum is 40.

The square root of 86815714 is about 9317.4950496365. The cubic root of 86815714 is about 442.7916750852.

The spelling of 86815714 in words is "eighty-six million, eight hundred fifteen thousand, seven hundred fourteen".