9993436 has 6 divisors (see below), whose sum is σ = 17488520. Its totient is φ = 4996716.

The previous prime is 9993427. The next prime is 9993437. The reversal of 9993436 is 6343999.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9993392 and 9993401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9993437) 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 as a sum of consecutive naturals, namely, 1249176 + ... + 1249183.

Almost surely, 2^9993436 is an apocalyptic number.

It is an amenable number.

9993436 is a deficient number, since it is larger than the sum of its proper divisors (7495084).

9993436 is a wasteful number, since it uses less digits than its factorization.

9993436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498363 (or 2498361 counting only the distinct ones).

The product of its digits is 157464, while the sum is 43.

The square root of 9993436 is about 3161.2396302716. The cubic root of 9993436 is about 215.3963196544.

The spelling of 9993436 in words is "nine million, nine hundred ninety-three thousand, four hundred thirty-six".