9221993 has 4 divisors (see below), whose sum is σ = 10060368. Its totient is φ = 8383620.

The previous prime is 9221987. The next prime is 9221999. The reversal of 9221993 is 3991229.

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 an interprime number because it is at equal distance from previous prime (9221987) and next prime (9221999).

It is a cyclic number.

It is not a de Polignac number, because 9221993 - 2⁶ = 9221929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9221999) 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, 419171 + ... + 419192.

It is an arithmetic number, because the mean of its divisors is an integer number (2515092).

Almost surely, 2^9221993 is an apocalyptic number.

It is an amenable number.

9221993 is a deficient number, since it is larger than the sum of its proper divisors (838375).

9221993 is a wasteful number, since it uses less digits than its factorization.

9221993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838374.

The product of its digits is 8748, while the sum is 35.

The square root of 9221993 is about 3036.7734522022. The cubic root of 9221993 is about 209.7047475898.

The spelling of 9221993 in words is "nine million, two hundred twenty-one thousand, nine hundred ninety-three".