428897713 has 2 divisors, whose sum is σ = 428897714. Its totient is φ = 428897712.

The previous prime is 428897683. The next prime is 428897717. The reversal of 428897713 is 317798824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418734369 + 10163344 = 20463^2 + 3188^2 .

It is a cyclic number.

It is not a de Polignac number, because 428897713 - 2⁹ = 428897201 is a prime.

It is not a weakly prime, because it can be changed into another prime (428897717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214448856 + 214448857.

It is an arithmetic number, because the mean of its divisors is an integer number (214448857).

Almost surely, 2^428897713 is an apocalyptic number.

It is an amenable number.

428897713 is a deficient number, since it is larger than the sum of its proper divisors (1).

428897713 is an equidigital number, since it uses as much as digits as its factorization.

428897713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 49.

The square root of 428897713 is about 20709.8457985568. The cubic root of 428897713 is about 754.1387269457.

The spelling of 428897713 in words is "four hundred twenty-eight million, eight hundred ninety-seven thousand, seven hundred thirteen".