8942399 has 4 divisors (see below), whose sum is σ = 8948520. Its totient is φ = 8936280.

The previous prime is 8942393. The next prime is 8942413. The reversal of 8942399 is 9932498.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8942399 - 2⁴ = 8942383 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 (8942393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557 + ... + 4265.

It is an arithmetic number, because the mean of its divisors is an integer number (2237130).

Almost surely, 2^8942399 is an apocalyptic number.

8942399 is a deficient number, since it is larger than the sum of its proper divisors (6121).

8942399 is a wasteful number, since it uses less digits than its factorization.

8942399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120.

The product of its digits is 139968, while the sum is 44.

The square root of 8942399 is about 2990.3844234479. The cubic root of 8942399 is about 207.5636733029.

Subtracting 8942399 from its reverse (9932498), we obtain a palindrome (990099).

The spelling of 8942399 in words is "eight million, nine hundred forty-two thousand, three hundred ninety-nine".