16722233 has 4 divisors (see below), whose sum is σ = 18242448. Its totient is φ = 15202020.

The previous prime is 16722229. The next prime is 16722239. The reversal of 16722233 is 33222761.

16722233 is nontrivially palindromic in base 12.

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 16722233 - 2² = 16722229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16722239) 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, 760091 + ... + 760112.

It is an arithmetic number, because the mean of its divisors is an integer number (4560612).

Almost surely, 2^16722233 is an apocalyptic number.

It is an amenable number.

16722233 is a deficient number, since it is larger than the sum of its proper divisors (1520215).

16722233 is a wasteful number, since it uses less digits than its factorization.

16722233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520214.

The product of its digits is 3024, while the sum is 26.

The square root of 16722233 is about 4089.2826999365. The cubic root of 16722233 is about 255.7200359406.

Adding to 16722233 its reverse (33222761), we get a palindrome (49944994).

The spelling of 16722233 in words is "sixteen million, seven hundred twenty-two thousand, two hundred thirty-three".