226679639 has 2 divisors, whose sum is σ = 226679640. Its totient is φ = 226679638.

The previous prime is 226679623. The next prime is 226679681. The reversal of 226679639 is 936976622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226679639 - 2⁴ = 226679623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226672639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113339819 + 113339820.

It is an arithmetic number, because the mean of its divisors is an integer number (113339820).

Almost surely, 2^226679639 is an apocalyptic number.

226679639 is a deficient number, since it is larger than the sum of its proper divisors (1).

226679639 is an equidigital number, since it uses as much as digits as its factorization.

226679639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 50.

The square root of 226679639 is about 15055.8838664490. The cubic root of 226679639 is about 609.7299162680.

The spelling of 226679639 in words is "two hundred twenty-six million, six hundred seventy-nine thousand, six hundred thirty-nine".