22604047 has 2 divisors, whose sum is σ = 22604048. Its totient is φ = 22604046.

The previous prime is 22604027. The next prime is 22604063. The reversal of 22604047 is 74040622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22604047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22604017) 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, 11302023 + 11302024.

It is an arithmetic number, because the mean of its divisors is an integer number (11302024).

Almost surely, 2^22604047 is an apocalyptic number.

22604047 is a deficient number, since it is larger than the sum of its proper divisors (1).

22604047 is an equidigital number, since it uses as much as digits as its factorization.

22604047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 22604047 is about 4754.3713569724. The cubic root of 22604047 is about 282.7453039403.

Adding to 22604047 its reverse (74040622), we get a palindrome (96644669).

The spelling of 22604047 in words is "twenty-two million, six hundred four thousand, forty-seven".