428905032233 has 2 divisors, whose sum is σ = 428905032234. Its totient is φ = 428905032232.

The previous prime is 428905032161. The next prime is 428905032251. The reversal of 428905032233 is 332230509824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428118958864 + 786073369 = 654308^2 + 28037^2 .

It is a cyclic number.

It is not a de Polignac number, because 428905032233 - 2⁸ = 428905031977 is a prime.

It is not a weakly prime, because it can be changed into another prime (428905032433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214452516116 + 214452516117.

It is an arithmetic number, because the mean of its divisors is an integer number (214452516117).

Almost surely, 2^428905032233 is an apocalyptic number.

It is an amenable number.

428905032233 is a deficient number, since it is larger than the sum of its proper divisors (1).

428905032233 is an equidigital number, since it uses as much as digits as its factorization.

428905032233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 428905032233 in words is "four hundred twenty-eight billion, nine hundred five million, thirty-two thousand, two hundred thirty-three".