16722319 has 2 divisors, whose sum is σ = 16722320. Its totient is φ = 16722318.

The previous prime is 16722289. The next prime is 16722347. The reversal of 16722319 is 91322761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16722319 - 2⁵ = 16722287 is a prime.

It is a super-2 number, since 2×16722319² = 559271905475522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16728319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8361159 + 8361160.

It is an arithmetic number, because the mean of its divisors is an integer number (8361160).

Almost surely, 2^16722319 is an apocalyptic number.

16722319 is a deficient number, since it is larger than the sum of its proper divisors (1).

16722319 is an equidigital number, since it uses as much as digits as its factorization.

16722319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 16722319 is about 4089.2932152146. The cubic root of 16722319 is about 255.7204743167.

It can be divided in two parts, 167 and 22319, that multiplied together give a palindrome (3727273).

The spelling of 16722319 in words is "sixteen million, seven hundred twenty-two thousand, three hundred nineteen".