22291967 has 2 divisors, whose sum is σ = 22291968. Its totient is φ = 22291966.

The previous prime is 22291961. The next prime is 22291999. The reversal of 22291967 is 76919222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22291967 - 2⁶ = 22291903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22291967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22291961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11145983 + 11145984.

It is an arithmetic number, because the mean of its divisors is an integer number (11145984).

Almost surely, 2^22291967 is an apocalyptic number.

22291967 is a deficient number, since it is larger than the sum of its proper divisors (1).

22291967 is an equidigital number, since it uses as much as digits as its factorization.

22291967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 38.

The square root of 22291967 is about 4721.4369634678. The cubic root of 22291967 is about 281.4380397163.

The spelling of 22291967 in words is "twenty-two million, two hundred ninety-one thousand, nine hundred sixty-seven".