9868805 has 4 divisors (see below), whose sum is σ = 11842572. Its totient is φ = 7895040.

The previous prime is 9868799. The next prime is 9868813. The reversal of 9868805 is 5088689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5088689 = 53 ⋅96013.

It can be written as a sum of positive squares in 2 ways, for example, as 4661281 + 5207524 = 2159^2 + 2282^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9868805 is a prime.

It is a Duffinian number.

It is a congruent 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, 986876 + ... + 986885.

It is an arithmetic number, because the mean of its divisors is an integer number (2960643).

Almost surely, 2^9868805 is an apocalyptic number.

It is an amenable number.

9868805 is a deficient number, since it is larger than the sum of its proper divisors (1973767).

9868805 is a wasteful number, since it uses less digits than its factorization.

9868805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973766.

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 9868805 is about 3141.4654223785. The cubic root of 9868805 is about 214.4971482425.

The spelling of 9868805 in words is "nine million, eight hundred sixty-eight thousand, eight hundred five".