226664947 has 2 divisors, whose sum is σ = 226664948. Its totient is φ = 226664946.

The previous prime is 226664939. The next prime is 226664951. The reversal of 226664947 is 749466622.

226664947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226664947 - 2³ = 226664939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 226664897 and 226664906.

It is not a weakly prime, because it can be changed into another prime (226661947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113332473 + 113332474.

It is an arithmetic number, because the mean of its divisors is an integer number (113332474).

Almost surely, 2^226664947 is an apocalyptic number.

226664947 is a deficient number, since it is larger than the sum of its proper divisors (1).

226664947 is an equidigital number, since it uses as much as digits as its factorization.

226664947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 46.

The square root of 226664947 is about 15055.3959429834. The cubic root of 226664947 is about 609.7167429844.

The spelling of 226664947 in words is "two hundred twenty-six million, six hundred sixty-four thousand, nine hundred forty-seven".