22628471 has 2 divisors, whose sum is σ = 22628472. Its totient is φ = 22628470.

The previous prime is 22628453. The next prime is 22628477. The reversal of 22628471 is 17482622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22628471 - 2¹⁰ = 22627447 is a prime.

It is a super-3 number, since 3×22628471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22628477) 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, 11314235 + 11314236.

It is an arithmetic number, because the mean of its divisors is an integer number (11314236).

Almost surely, 2^22628471 is an apocalyptic number.

22628471 is a deficient number, since it is larger than the sum of its proper divisors (1).

22628471 is an equidigital number, since it uses as much as digits as its factorization.

22628471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 32.

The square root of 22628471 is about 4756.9392470369. The cubic root of 22628471 is about 282.8471040816.

The spelling of 22628471 in words is "twenty-two million, six hundred twenty-eight thousand, four hundred seventy-one".