22316639 has 2 divisors, whose sum is σ = 22316640. Its totient is φ = 22316638.

The previous prime is 22316633. The next prime is 22316641. The reversal of 22316639 is 93661322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22316639 - 2⁸ = 22316383 is a prime.

It is a super-3 number, since 3×22316639³ (a number of 23 digits) contains 333 as substring.

Together with 22316641, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22316633) 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 as a sum of consecutive naturals, namely, 11158319 + 11158320.

It is an arithmetic number, because the mean of its divisors is an integer number (11158320).

Almost surely, 2^22316639 is an apocalyptic number.

22316639 is a deficient number, since it is larger than the sum of its proper divisors (1).

22316639 is an equidigital number, since it uses as much as digits as its factorization.

22316639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 22316639 is about 4724.0490048263. The cubic root of 22316639 is about 281.5418301569.

The spelling of 22316639 in words is "twenty-two million, three hundred sixteen thousand, six hundred thirty-nine".