22275787 has 2 divisors, whose sum is σ = 22275788. Its totient is φ = 22275786.

The previous prime is 22275769. The next prime is 22275793. The reversal of 22275787 is 78757222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22275787 - 2¹⁵ = 22243019 is a prime.

It is not a weakly prime, because it can be changed into another prime (22279787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11137893 + 11137894.

It is an arithmetic number, because the mean of its divisors is an integer number (11137894).

Almost surely, 2^22275787 is an apocalyptic number.

22275787 is a deficient number, since it is larger than the sum of its proper divisors (1).

22275787 is an equidigital number, since it uses as much as digits as its factorization.

22275787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109760, while the sum is 40.

The square root of 22275787 is about 4719.7231910357. The cubic root of 22275787 is about 281.3699319290.

The spelling of 22275787 in words is "twenty-two million, two hundred seventy-five thousand, seven hundred eighty-seven".