428488699 has 2 divisors, whose sum is σ = 428488700. Its totient is φ = 428488698.

The previous prime is 428488693. The next prime is 428488733. The reversal of 428488699 is 996884824.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428488699 is a prime.

It is not a weakly prime, because it can be changed into another prime (428488693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214244349 + 214244350.

It is an arithmetic number, because the mean of its divisors is an integer number (214244350).

Almost surely, 2^428488699 is an apocalyptic number.

428488699 is a deficient number, since it is larger than the sum of its proper divisors (1).

428488699 is an equidigital number, since it uses as much as digits as its factorization.

428488699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7962624, while the sum is 58.

The square root of 428488699 is about 20699.9685748554. The cubic root of 428488699 is about 753.8989250916.

The spelling of 428488699 in words is "four hundred twenty-eight million, four hundred eighty-eight thousand, six hundred ninety-nine".