423280343 has 2 divisors, whose sum is σ = 423280344. Its totient is φ = 423280342.

The previous prime is 423280303. The next prime is 423280349. The reversal of 423280343 is 343082324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423280343 - 2⁶ = 423280279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423280349) 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, 211640171 + 211640172.

It is an arithmetic number, because the mean of its divisors is an integer number (211640172).

Almost surely, 2^423280343 is an apocalyptic number.

423280343 is a deficient number, since it is larger than the sum of its proper divisors (1).

423280343 is an equidigital number, since it uses as much as digits as its factorization.

423280343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 423280343 is about 20573.7780439082. The cubic root of 423280343 is about 750.8318728275.

The spelling of 423280343 in words is "four hundred twenty-three million, two hundred eighty thousand, three hundred forty-three".