9990433 has 4 divisors (see below), whose sum is σ = 10051888. Its totient is φ = 9928980.

The previous prime is 9990403. The next prime is 9990457. The reversal of 9990433 is 3340999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3340999 = 83 ⋅40253.

It is a cyclic number.

It is not a de Polignac number, because 9990433 - 2⁹ = 9989921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9990392 and 9990401.

It is not an unprimeable number, because it can be changed into a prime (9990403) 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, 30483 + ... + 30808.

It is an arithmetic number, because the mean of its divisors is an integer number (2512972).

Almost surely, 2^9990433 is an apocalyptic number.

It is an amenable number.

9990433 is a deficient number, since it is larger than the sum of its proper divisors (61455).

9990433 is a wasteful number, since it uses less digits than its factorization.

9990433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61454.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 9990433 is about 3160.7646226823. The cubic root of 9990433 is about 215.3747421593.

The spelling of 9990433 in words is "nine million, nine hundred ninety thousand, four hundred thirty-three".