9942403 has 4 divisors (see below), whose sum is σ = 10045000. Its totient is φ = 9839808.

The previous prime is 9942391. The next prime is 9942407. The reversal of 9942403 is 3042499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3042499 = 151 ⋅20149.

It is a cyclic number.

It is not a de Polignac number, because 9942403 - 2⁹ = 9941891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9942407) 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, 51153 + ... + 51346.

It is an arithmetic number, because the mean of its divisors is an integer number (2511250).

Almost surely, 2^9942403 is an apocalyptic number.

9942403 is a deficient number, since it is larger than the sum of its proper divisors (102597).

9942403 is a wasteful number, since it uses less digits than its factorization.

9942403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102596.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 9942403 is about 3153.1576237163. The cubic root of 9942403 is about 215.0290424081.

The spelling of 9942403 in words is "nine million, nine hundred forty-two thousand, four hundred three".