423333853 has 2 divisors, whose sum is σ = 423333854. Its totient is φ = 423333852.

The previous prime is 423333829. The next prime is 423333863. The reversal of 423333853 is 358333324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418325209 + 5008644 = 20453^2 + 2238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423333853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423333863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211666926 + 211666927.

It is an arithmetic number, because the mean of its divisors is an integer number (211666927).

Almost surely, 2^423333853 is an apocalyptic number.

It is an amenable number.

423333853 is a deficient number, since it is larger than the sum of its proper divisors (1).

423333853 is an equidigital number, since it uses as much as digits as its factorization.

423333853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 34.

The square root of 423333853 is about 20575.0784445649. The cubic root of 423333853 is about 750.8635108985.

The spelling of 423333853 in words is "four hundred twenty-three million, three hundred thirty-three thousand, eight hundred fifty-three".