86285287 has 4 divisors (see below), whose sum is σ = 94129416. Its totient is φ = 78441160.

The previous prime is 86285281. The next prime is 86285299. The reversal of 86285287 is 78258268.

It is a happy number.

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 86285287 - 2¹⁵ = 86252519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86285281) 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, 3922048 + ... + 3922069.

It is an arithmetic number, because the mean of its divisors is an integer number (23532354).

Almost surely, 2^86285287 is an apocalyptic number.

86285287 is a deficient number, since it is larger than the sum of its proper divisors (7844129).

86285287 is a wasteful number, since it uses less digits than its factorization.

86285287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7844128.

The product of its digits is 430080, while the sum is 46.

The square root of 86285287 is about 9288.9874044483. The cubic root of 86285287 is about 441.8880421172. Note that the first 3 decimals are identical.

The spelling of 86285287 in words is "eighty-six million, two hundred eighty-five thousand, two hundred eighty-seven".