423296287 has 2 divisors, whose sum is σ = 423296288. Its totient is φ = 423296286.

The previous prime is 423296273. The next prime is 423296303. The reversal of 423296287 is 782692324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423296287 - 2¹¹ = 423294239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423296087) 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, 211648143 + 211648144.

It is an arithmetic number, because the mean of its divisors is an integer number (211648144).

Almost surely, 2^423296287 is an apocalyptic number.

423296287 is the 11879-th hex number.

423296287 is a deficient number, since it is larger than the sum of its proper divisors (1).

423296287 is an equidigital number, since it uses as much as digits as its factorization.

423296287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 423296287 is about 20574.1655237825. The cubic root of 423296287 is about 750.8413000808.

The spelling of 423296287 in words is "four hundred twenty-three million, two hundred ninety-six thousand, two hundred eighty-seven".