9924869 has 4 divisors (see below), whose sum is σ = 9946860. Its totient is φ = 9902880.

The previous prime is 9924851. The next prime is 9924881. The reversal of 9924869 is 9684299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9684299 = 61 ⋅158759.

It can be written as a sum of positive squares in 2 ways, for example, as 2362369 + 7562500 = 1537^2 + 2750^2 .

It is a cyclic number.

It is not a de Polignac number, because 9924869 - 2⁸ = 9924613 is a prime.

It is a super-2 number, since 2×9924869² = 197006049334322, 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 (9924899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10304 + ... + 11225.

It is an arithmetic number, because the mean of its divisors is an integer number (2486715).

Almost surely, 2^9924869 is an apocalyptic number.

It is an amenable number.

9924869 is a deficient number, since it is larger than the sum of its proper divisors (21991).

9924869 is a wasteful number, since it uses less digits than its factorization.

9924869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21990.

The product of its digits is 279936, while the sum is 47.

The square root of 9924869 is about 3150.3760093043. The cubic root of 9924869 is about 214.9025626629.

The spelling of 9924869 in words is "nine million, nine hundred twenty-four thousand, eight hundred sixty-nine".