226626637 has 2 divisors, whose sum is σ = 226626638. Its totient is φ = 226626636.

The previous prime is 226626601. The next prime is 226626667. The reversal of 226626637 is 736626622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226622916 + 3721 = 15054^2 + 61^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226626637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226626637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226626667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113313318 + 113313319.

It is an arithmetic number, because the mean of its divisors is an integer number (113313319).

Almost surely, 2^226626637 is an apocalyptic number.

It is an amenable number.

226626637 is a deficient number, since it is larger than the sum of its proper divisors (1).

226626637 is an equidigital number, since it uses as much as digits as its factorization.

226626637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 40.

The square root of 226626637 is about 15054.1235879077. The cubic root of 226626637 is about 609.6823904230.

The spelling of 226626637 in words is "two hundred twenty-six million, six hundred twenty-six thousand, six hundred thirty-seven".