226866637 has 2 divisors, whose sum is σ = 226866638. Its totient is φ = 226866636.

The previous prime is 226866617. The next prime is 226866671. The reversal of 226866637 is 736668622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205807716 + 21058921 = 14346^2 + 4589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226866637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226866617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113433318 + 113433319.

It is an arithmetic number, because the mean of its divisors is an integer number (113433319).

Almost surely, 2^226866637 is an apocalyptic number.

It is an amenable number.

226866637 is a deficient number, since it is larger than the sum of its proper divisors (1).

226866637 is an equidigital number, since it uses as much as digits as its factorization.

226866637 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 226866637 is about 15062.0927164853. The cubic root of 226866637 is about 609.8975345226.

The spelling of 226866637 in words is "two hundred twenty-six million, eight hundred sixty-six thousand, six hundred thirty-seven".