22307869 has 2 divisors, whose sum is σ = 22307870. Its totient is φ = 22307868.

The previous prime is 22307867. The next prime is 22307891. The reversal of 22307869 is 96870322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17960644 + 4347225 = 4238^2 + 2085^2 .

It is a cyclic number.

It is not a de Polignac number, because 22307869 - 2¹ = 22307867 is a prime.

It is a super-3 number, since 3×22307869³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 22307867, 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 (22307863) 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, 11153934 + 11153935.

It is an arithmetic number, because the mean of its divisors is an integer number (11153935).

Almost surely, 2^22307869 is an apocalyptic number.

It is an amenable number.

22307869 is a deficient number, since it is larger than the sum of its proper divisors (1).

22307869 is an equidigital number, since it uses as much as digits as its factorization.

22307869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 22307869 is about 4723.1206844628. The cubic root of 22307869 is about 281.5049451917.

The spelling of 22307869 in words is "twenty-two million, three hundred seven thousand, eight hundred sixty-nine".