86248865 has 4 divisors (see below), whose sum is σ = 103498644. Its totient is φ = 68999088.

The previous prime is 86248817. The next prime is 86248879. The reversal of 86248865 is 56884268.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12306064 + 73942801 = 3508^2 + 8599^2 .

It is a cyclic number.

It is not a de Polignac number, because 86248865 - 2⁸ = 86248609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8624882 + ... + 8624891.

It is an arithmetic number, because the mean of its divisors is an integer number (25874661).

Almost surely, 2^86248865 is an apocalyptic number.

It is an amenable number.

86248865 is a deficient number, since it is larger than the sum of its proper divisors (17249779).

86248865 is a wasteful number, since it uses less digits than its factorization.

86248865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17249778.

The product of its digits is 737280, while the sum is 47.

The square root of 86248865 is about 9287.0267039564. The cubic root of 86248865 is about 441.8258580458.

The spelling of 86248865 in words is "eighty-six million, two hundred forty-eight thousand, eight hundred sixty-five".