22921667 has 2 divisors, whose sum is σ = 22921668. Its totient is φ = 22921666.

The previous prime is 22921663. The next prime is 22921669. The reversal of 22921667 is 76612922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22921667 - 2² = 22921663 is a prime.

Together with 22921669, 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 (22921663) 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, 11460833 + 11460834.

It is an arithmetic number, because the mean of its divisors is an integer number (11460834).

Almost surely, 2^22921667 is an apocalyptic number.

22921667 is a deficient number, since it is larger than the sum of its proper divisors (1).

22921667 is an equidigital number, since it uses as much as digits as its factorization.

22921667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 22921667 is about 4787.6577780790. The cubic root of 22921667 is about 284.0634776776.

The spelling of 22921667 in words is "twenty-two million, nine hundred twenty-one thousand, six hundred sixty-seven".