423222913 has 2 divisors, whose sum is σ = 423222914. Its totient is φ = 423222912.

The previous prime is 423222907. The next prime is 423222949. The reversal of 423222913 is 319222324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326633329 + 96589584 = 18073^2 + 9828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423222913 is a prime.

It is not a weakly prime, because it can be changed into another prime (423222713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211611456 + 211611457.

It is an arithmetic number, because the mean of its divisors is an integer number (211611457).

Almost surely, 2^423222913 is an apocalyptic number.

It is an amenable number.

423222913 is a deficient number, since it is larger than the sum of its proper divisors (1).

423222913 is an equidigital number, since it uses as much as digits as its factorization.

423222913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 423222913 is about 20572.3822879121. The cubic root of 423222913 is about 750.7979140691.

The spelling of 423222913 in words is "four hundred twenty-three million, two hundred twenty-two thousand, nine hundred thirteen".