428082097 has 2 divisors, whose sum is σ = 428082098. Its totient is φ = 428082096.

The previous prime is 428082091. The next prime is 428082133. The reversal of 428082097 is 790280824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318586801 + 109495296 = 17849^2 + 10464^2 .

It is a cyclic number.

It is not a de Polignac number, because 428082097 - 2³ = 428082089 is a prime.

It is not a weakly prime, because it can be changed into another prime (428082091) 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, 214041048 + 214041049.

It is an arithmetic number, because the mean of its divisors is an integer number (214041049).

Almost surely, 2^428082097 is an apocalyptic number.

It is an amenable number.

428082097 is a deficient number, since it is larger than the sum of its proper divisors (1).

428082097 is an equidigital number, since it uses as much as digits as its factorization.

428082097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 428082097 is about 20690.1449245770. The cubic root of 428082097 is about 753.6603860727.

The spelling of 428082097 in words is "four hundred twenty-eight million, eighty-two thousand, ninety-seven".