22073861 has 2 divisors, whose sum is σ = 22073862. Its totient is φ = 22073860.

The previous prime is 22073819. The next prime is 22073873. The reversal of 22073861 is 16837022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16760836 + 5313025 = 4094^2 + 2305^2 .

It is a cyclic number.

It is not a de Polignac number, because 22073861 - 2⁶ = 22073797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22073561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11036930 + 11036931.

It is an arithmetic number, because the mean of its divisors is an integer number (11036931).

Almost surely, 2^22073861 is an apocalyptic number.

It is an amenable number.

22073861 is a deficient number, since it is larger than the sum of its proper divisors (1).

22073861 is an equidigital number, since it uses as much as digits as its factorization.

22073861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 22073861 is about 4698.2827713964. The cubic root of 22073861 is about 280.5171607114.

The spelling of 22073861 in words is "twenty-two million, seventy-three thousand, eight hundred sixty-one".