22628311 has 2 divisors, whose sum is σ = 22628312. Its totient is φ = 22628310.

The previous prime is 22628303. The next prime is 22628317. The reversal of 22628311 is 11382622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22628311 - 2³ = 22628303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22628317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11314155 + 11314156.

It is an arithmetic number, because the mean of its divisors is an integer number (11314156).

Almost surely, 2^22628311 is an apocalyptic number.

22628311 is a deficient number, since it is larger than the sum of its proper divisors (1).

22628311 is an equidigital number, since it uses as much as digits as its factorization.

22628311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 25.

The square root of 22628311 is about 4756.9224294706. The cubic root of 22628311 is about 282.8464374340.

The spelling of 22628311 in words is "twenty-two million, six hundred twenty-eight thousand, three hundred eleven".