22474447 has 2 divisors, whose sum is σ = 22474448. Its totient is φ = 22474446.

The previous prime is 22474421. The next prime is 22474453. The reversal of 22474447 is 74447422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22474447 - 2²³ = 14085839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22474247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11237223 + 11237224.

It is an arithmetic number, because the mean of its divisors is an integer number (11237224).

Almost surely, 2^22474447 is an apocalyptic number.

22474447 is a deficient number, since it is larger than the sum of its proper divisors (1).

22474447 is an equidigital number, since it uses as much as digits as its factorization.

22474447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50176, while the sum is 34.

The square root of 22474447 is about 4740.7222023654. The cubic root of 22474447 is about 282.2038957646.

The spelling of 22474447 in words is "twenty-two million, four hundred seventy-four thousand, four hundred forty-seven".