428759791 has 6 divisors (see below), whose sum is σ = 442709792. Its totient is φ = 414817260.

The previous prime is 428759753. The next prime is 428759827. The reversal of 428759791 is 197957824.

It is a de Polignac number, because none of the positive numbers 2^k-428759791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428759731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113430 + ... + 117148.

Almost surely, 2^428759791 is an apocalyptic number.

428759791 is a deficient number, since it is larger than the sum of its proper divisors (13950001).

428759791 is an frugal number, since it uses more digits than its factorization.

428759791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7469 (or 3750 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 52.

The square root of 428759791 is about 20706.5156653649. The cubic root of 428759791 is about 754.0578813505.

The spelling of 428759791 in words is "four hundred twenty-eight million, seven hundred fifty-nine thousand, seven hundred ninety-one".