22672891 has 2 divisors, whose sum is σ = 22672892. Its totient is φ = 22672890.

The previous prime is 22672889. The next prime is 22672913. The reversal of 22672891 is 19827622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22672891 - 2¹ = 22672889 is a prime.

Together with 22672889, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22672891.

It is not a weakly prime, because it can be changed into another prime (22672831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11336445 + 11336446.

It is an arithmetic number, because the mean of its divisors is an integer number (11336446).

Almost surely, 2^22672891 is an apocalyptic number.

22672891 is a deficient number, since it is larger than the sum of its proper divisors (1).

22672891 is an equidigital number, since it uses as much as digits as its factorization.

22672891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 22672891 is about 4761.6059265756. The cubic root of 22672891 is about 283.0320606962.

The spelling of 22672891 in words is "twenty-two million, six hundred seventy-two thousand, eight hundred ninety-one".