9993219 has 16 divisors (see below), whose sum is σ = 13783968. Its totient is φ = 6435072.

The previous prime is 9993209. The next prime is 9993223. The reversal of 9993219 is 9123999.

It is a happy number.

9993219 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 9993219 - 2⁷ = 9993091 is a prime.

It is a super-2 number, since 2×9993219² = 199728851963922, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9993209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21639 + ... + 22095.

It is an arithmetic number, because the mean of its divisors is an integer number (861498).

Almost surely, 2^9993219 is an apocalyptic number.

9993219 is a deficient number, since it is larger than the sum of its proper divisors (3790749).

9993219 is a wasteful number, since it uses less digits than its factorization.

9993219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its digits is 39366, while the sum is 42.

The square root of 9993219 is about 3161.2053081064. The cubic root of 9993219 is about 215.3947605864.

The spelling of 9993219 in words is "nine million, nine hundred ninety-three thousand, two hundred nineteen".