428901323 has 2 divisors, whose sum is σ = 428901324. Its totient is φ = 428901322.

The previous prime is 428901301. The next prime is 428901397. The reversal of 428901323 is 323109824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428901323 - 2¹⁶ = 428835787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 428901323.

It is not a weakly prime, because it can be changed into another prime (428901623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214450661 + 214450662.

It is an arithmetic number, because the mean of its divisors is an integer number (214450662).

Almost surely, 2^428901323 is an apocalyptic number.

428901323 is a deficient number, since it is larger than the sum of its proper divisors (1).

428901323 is an equidigital number, since it uses as much as digits as its factorization.

428901323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 428901323 is about 20709.9329549856. The cubic root of 428901323 is about 754.1408427829.

The spelling of 428901323 in words is "four hundred twenty-eight million, nine hundred one thousand, three hundred twenty-three".