428484879 has 12 divisors (see below), whose sum is σ = 620486776. Its totient is φ = 284934672.

The previous prime is 428484863. The next prime is 428484907. The reversal of 428484879 is 978484824.

It is not a de Polignac number, because 428484879 - 2⁴ = 428484863 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 (428484839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56389 + ... + 63534.

Almost surely, 2^428484879 is an apocalyptic number.

428484879 is a deficient number, since it is larger than the sum of its proper divisors (192001897).

428484879 is a wasteful number, since it uses less digits than its factorization.

428484879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120326 (or 120323 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 428484879 is about 20699.8763039782. The cubic root of 428484879 is about 753.8966847350.

Subtracting 428484879 from its reverse (978484824), we obtain a palindrome (549999945).

The spelling of 428484879 in words is "four hundred twenty-eight million, four hundred eighty-four thousand, eight hundred seventy-nine".