22459447 has 2 divisors, whose sum is σ = 22459448. Its totient is φ = 22459446.

The previous prime is 22459421. The next prime is 22459457. The reversal of 22459447 is 74495422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22459447 - 2²³ = 14070839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22459457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11229723 + 11229724.

It is an arithmetic number, because the mean of its divisors is an integer number (11229724).

Almost surely, 2^22459447 is an apocalyptic number.

22459447 is a deficient number, since it is larger than the sum of its proper divisors (1).

22459447 is an equidigital number, since it uses as much as digits as its factorization.

22459447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 22459447 is about 4739.1399008681. The cubic root of 22459447 is about 282.1410985126.

The spelling of 22459447 in words is "twenty-two million, four hundred fifty-nine thousand, four hundred forty-seven".