9924399 has 12 divisors (see below), whose sum is σ = 14723176. Its totient is φ = 6437232.

The previous prime is 9924391. The next prime is 9924407. The reversal of 9924399 is 9934299.

It is an interprime number because it is at equal distance from previous prime (9924391) and next prime (9924407).

It is not a de Polignac number, because 9924399 - 2³ = 9924391 is a prime.

It is a super-2 number, since 2×9924399² = 196987391022402, 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 (9924391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14569 + ... + 15234.

Almost surely, 2^9924399 is an apocalyptic number.

9924399 is a deficient number, since it is larger than the sum of its proper divisors (4798777).

9924399 is a wasteful number, since it uses less digits than its factorization.

9924399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29846 (or 29843 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 9924399 is about 3150.3014141507. The cubic root of 9924399 is about 214.8991703159.

The spelling of 9924399 in words is "nine million, nine hundred twenty-four thousand, three hundred ninety-nine".