9980993 has 4 divisors (see below), whose sum is σ = 10888368. Its totient is φ = 9073620.

The previous prime is 9980987. The next prime is 9981001. The reversal of 9980993 is 3990899.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 9980993 - 2¹⁶ = 9915457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9980293) 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, 453671 + ... + 453692.

It is an arithmetic number, because the mean of its divisors is an integer number (2722092).

Almost surely, 2^9980993 is an apocalyptic number.

It is an amenable number.

9980993 is a deficient number, since it is larger than the sum of its proper divisors (907375).

9980993 is a wasteful number, since it uses less digits than its factorization.

9980993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907374.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 9980993 is about 3159.2709602059. The cubic root of 9980993 is about 215.3068846308.

The spelling of 9980993 in words is "nine million, nine hundred eighty thousand, nine hundred ninety-three".