22293641 has 2 divisors, whose sum is σ = 22293642. Its totient is φ = 22293640.

The previous prime is 22293637. The next prime is 22293643. The reversal of 22293641 is 14639222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17606416 + 4687225 = 4196^2 + 2165^2 .

It is a cyclic number.

It is not a de Polignac number, because 22293641 - 2² = 22293637 is a prime.

Together with 22293643, 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 (22293643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11146820 + 11146821.

It is an arithmetic number, because the mean of its divisors is an integer number (11146821).

Almost surely, 2^22293641 is an apocalyptic number.

It is an amenable number.

22293641 is a deficient number, since it is larger than the sum of its proper divisors (1).

22293641 is an equidigital number, since it uses as much as digits as its factorization.

22293641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 22293641 is about 4721.6142366780. The cubic root of 22293641 is about 281.4450843390.

The spelling of 22293641 in words is "twenty-two million, two hundred ninety-three thousand, six hundred forty-one".