22276739 has 2 divisors, whose sum is σ = 22276740. Its totient is φ = 22276738.

The previous prime is 22276733. The next prime is 22276741. The reversal of 22276739 is 93767222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22276739 - 2¹² = 22272643 is a prime.

Together with 22276741, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22276733) 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, 11138369 + 11138370.

It is an arithmetic number, because the mean of its divisors is an integer number (11138370).

Almost surely, 2^22276739 is an apocalyptic number.

22276739 is a deficient number, since it is larger than the sum of its proper divisors (1).

22276739 is an equidigital number, since it uses as much as digits as its factorization.

22276739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 22276739 is about 4719.8240433304. The cubic root of 22276739 is about 281.3739401729.

The spelling of 22276739 in words is "twenty-two million, two hundred seventy-six thousand, seven hundred thirty-nine".