423646343 has 2 divisors, whose sum is σ = 423646344. Its totient is φ = 423646342.

The previous prime is 423646339. The next prime is 423646367. The reversal of 423646343 is 343646324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423646343 - 2² = 423646339 is a prime.

It is a super-3 number, since 3×423646343³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423646303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211823171 + 211823172.

It is an arithmetic number, because the mean of its divisors is an integer number (211823172).

Almost surely, 2^423646343 is an apocalyptic number.

423646343 is a deficient number, since it is larger than the sum of its proper divisors (1).

423646343 is an equidigital number, since it uses as much as digits as its factorization.

423646343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 35.

The square root of 423646343 is about 20582.6709394092. The cubic root of 423646343 is about 751.0482190407.

The spelling of 423646343 in words is "four hundred twenty-three million, six hundred forty-six thousand, three hundred forty-three".