22316939 has 2 divisors, whose sum is σ = 22316940. Its totient is φ = 22316938.

The previous prime is 22316929. The next prime is 22316941. The reversal of 22316939 is 93961322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22316939 - 2²⁰ = 21268363 is a prime.

It is a super-3 number, since 3×22316939³ (a number of 23 digits) contains 333 as substring.

Together with 22316941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22316899 and 22316908.

It is not a weakly prime, because it can be changed into another prime (22316929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11158469 + 11158470.

It is an arithmetic number, because the mean of its divisors is an integer number (11158470).

Almost surely, 2^22316939 is an apocalyptic number.

22316939 is a deficient number, since it is larger than the sum of its proper divisors (1).

22316939 is an equidigital number, since it uses as much as digits as its factorization.

22316939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 35.

The square root of 22316939 is about 4724.0807571421. The cubic root of 22316939 is about 281.5430917294.

The spelling of 22316939 in words is "twenty-two million, three hundred sixteen thousand, nine hundred thirty-nine".