428410769 has 2 divisors, whose sum is σ = 428410770. Its totient is φ = 428410768.

The previous prime is 428410733. The next prime is 428410771. The reversal of 428410769 is 967014824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399520144 + 28890625 = 19988^2 + 5375^2 .

It is a cyclic number.

It is not a de Polignac number, because 428410769 - 2⁸ = 428410513 is a prime.

It is a super-2 number, since 2×428410769² = 367071573990342722, which contains 22 as substring.

Together with 428410771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (428410789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214205384 + 214205385.

It is an arithmetic number, because the mean of its divisors is an integer number (214205385).

Almost surely, 2^428410769 is an apocalyptic number.

It is an amenable number.

428410769 is a deficient number, since it is larger than the sum of its proper divisors (1).

428410769 is an equidigital number, since it uses as much as digits as its factorization.

428410769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 428410769 is about 20698.0861192527. The cubic root of 428410769 is about 753.8532180088.

The spelling of 428410769 in words is "four hundred twenty-eight million, four hundred ten thousand, seven hundred sixty-nine".