22421677 has 2 divisors, whose sum is σ = 22421678. Its totient is φ = 22421676.

The previous prime is 22421599. The next prime is 22421689. The reversal of 22421677 is 77612422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20967241 + 1454436 = 4579^2 + 1206^2 .

It is a cyclic number.

It is not a de Polignac number, because 22421677 - 2¹¹ = 22419629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22421177) 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, 11210838 + 11210839.

It is an arithmetic number, because the mean of its divisors is an integer number (11210839).

Almost surely, 2^22421677 is an apocalyptic number.

It is an amenable number.

22421677 is a deficient number, since it is larger than the sum of its proper divisors (1).

22421677 is an equidigital number, since it uses as much as digits as its factorization.

22421677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 31.

The square root of 22421677 is about 4735.1533238112. The cubic root of 22421677 is about 281.9828510940.

The spelling of 22421677 in words is "twenty-two million, four hundred twenty-one thousand, six hundred seventy-seven".