22891073 has 2 divisors, whose sum is σ = 22891074. Its totient is φ = 22891072.

The previous prime is 22891031. The next prime is 22891081. The reversal of 22891073 is 37019822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21270544 + 1620529 = 4612^2 + 1273^2 .

It is a cyclic number.

It is not a de Polignac number, because 22891073 - 2⁶ = 22891009 is a prime.

It is not a weakly prime, because it can be changed into another prime (22891273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11445536 + 11445537.

It is an arithmetic number, because the mean of its divisors is an integer number (11445537).

Almost surely, 2^22891073 is an apocalyptic number.

It is an amenable number.

22891073 is a deficient number, since it is larger than the sum of its proper divisors (1).

22891073 is an equidigital number, since it uses as much as digits as its factorization.

22891073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 22891073 is about 4784.4616207051. The cubic root of 22891073 is about 283.9370397033.

The spelling of 22891073 in words is "twenty-two million, eight hundred ninety-one thousand, seventy-three".