478659789 has 48 divisors (see below), whose sum is σ = 734557824. Its totient is φ = 299980800.

The previous prime is 478659773. The next prime is 478659791. The reversal of 478659789 is 987956874.

It is not a de Polignac number, because 478659789 - 2⁴ = 478659773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478659719) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1538944 + ... + 1539254.

It is an arithmetic number, because the mean of its divisors is an integer number (15303288).

Almost surely, 2^478659789 is an apocalyptic number.

It is an amenable number.

478659789 is a deficient number, since it is larger than the sum of its proper divisors (255898035).

478659789 is a wasteful number, since it uses less digits than its factorization.

478659789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 495 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The square root of 478659789 is about 21878.2949289930. The cubic root of 478659789 is about 782.2441338692.

The spelling of 478659789 in words is "four hundred seventy-eight million, six hundred fifty-nine thousand, seven hundred eighty-nine".