226917979 has 2 divisors, whose sum is σ = 226917980. Its totient is φ = 226917978.

The previous prime is 226917949. The next prime is 226917983. The reversal of 226917979 is 979719622.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226917979 - 2⁵ = 226917947 is a prime.

It is not a weakly prime, because it can be changed into another prime (226917919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113458989 + 113458990.

It is an arithmetic number, because the mean of its divisors is an integer number (113458990).

Almost surely, 2^226917979 is an apocalyptic number.

226917979 is a deficient number, since it is larger than the sum of its proper divisors (1).

226917979 is an equidigital number, since it uses as much as digits as its factorization.

226917979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 52.

The square root of 226917979 is about 15063.7969649089. The cubic root of 226917979 is about 609.9435395203.

The spelling of 226917979 in words is "two hundred twenty-six million, nine hundred seventeen thousand, nine hundred seventy-nine".