1226966393 has 2 divisors, whose sum is σ = 1226966394. Its totient is φ = 1226966392.

The previous prime is 1226966353. The next prime is 1226966413. The reversal of 1226966393 is 3936696221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 724847929 + 502118464 = 26923^2 + 22408^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226966393 - 2⁸ = 1226966137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1226966333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613483196 + 613483197.

It is an arithmetic number, because the mean of its divisors is an integer number (613483197).

Almost surely, 2^1226966393 is an apocalyptic number.

It is an amenable number.

1226966393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226966393 is an equidigital number, since it uses as much as digits as its factorization.

1226966393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 47.

The square root of 1226966393 is about 35028.0800644283. The cubic root of 1226966393 is about 1070.5596958284.

The spelling of 1226966393 in words is "one billion, two hundred twenty-six million, nine hundred sixty-six thousand, three hundred ninety-three".