22074989 has 2 divisors, whose sum is σ = 22074990. Its totient is φ = 22074988.

The previous prime is 22074911. The next prime is 22074991. The reversal of 22074989 is 98947022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18852964 + 3222025 = 4342^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 22074989 - 2¹⁶ = 22009453 is a prime.

Together with 22074991, 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 (22074589) 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, 11037494 + 11037495.

It is an arithmetic number, because the mean of its divisors is an integer number (11037495).

Almost surely, 2^22074989 is an apocalyptic number.

It is an amenable number.

22074989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22074989 is an equidigital number, since it uses as much as digits as its factorization.

22074989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 22074989 is about 4698.4028137230. The cubic root of 22074989 is about 280.5219388812.

The spelling of 22074989 in words is "twenty-two million, seventy-four thousand, nine hundred eighty-nine".