9990093 has 8 divisors (see below), whose sum is σ = 13351968. Its totient is φ = 6644144.

The previous prime is 9990089. The next prime is 9990121. The reversal of 9990093 is 3900999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9990093 - 2² = 9990089 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9990193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2430 + ... + 5087.

It is an arithmetic number, because the mean of its divisors is an integer number (1668996).

Almost surely, 2^9990093 is an apocalyptic number.

It is an amenable number.

9990093 is a deficient number, since it is larger than the sum of its proper divisors (3361875).

9990093 is a wasteful number, since it uses less digits than its factorization.

9990093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963.

The product of its (nonzero) digits is 19683, while the sum is 39.

The square root of 9990093 is about 3160.7108377705. The cubic root of 9990093 is about 215.3722988804.

The spelling of 9990093 in words is "nine million, nine hundred ninety thousand, ninety-three".