9942499 has 4 divisors (see below), whose sum is σ = 11362864. Its totient is φ = 8522136.

The previous prime is 9942497. The next prime is 9942523.

9942499 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 9942499 - 2¹ = 9942497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9942497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710172 + ... + 710185.

It is an arithmetic number, because the mean of its divisors is an integer number (2840716).

Almost surely, 2^9942499 is an apocalyptic number.

9942499 is a deficient number, since it is larger than the sum of its proper divisors (1420365).

9942499 is a wasteful number, since it uses less digits than its factorization.

9942499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420364.

The product of its digits is 209952, while the sum is 46.

The square root of 9942499 is about 3153.1728465151. The cubic root of 9942499 is about 215.0297344850.

The spelling of 9942499 in words is "nine million, nine hundred forty-two thousand, four hundred ninety-nine".