22074839 has 2 divisors, whose sum is σ = 22074840. Its totient is φ = 22074838.

The previous prime is 22074739. The next prime is 22074853. The reversal of 22074839 is 93847022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22074839 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22074799 and 22074808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22074859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11037419 + 11037420.

It is an arithmetic number, because the mean of its divisors is an integer number (11037420).

Almost surely, 2^22074839 is an apocalyptic number.

22074839 is a deficient number, since it is larger than the sum of its proper divisors (1).

22074839 is an equidigital number, since it uses as much as digits as its factorization.

22074839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 22074839 is about 4698.3868508244. The cubic root of 22074839 is about 280.5213034956.

The spelling of 22074839 in words is "twenty-two million, seventy-four thousand, eight hundred thirty-nine".