478928999 has 8 divisors (see below), whose sum is σ = 494627760. Its totient is φ = 463375296.

The previous prime is 478928987. The next prime is 478929071. The reversal of 478928999 is 999829874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478928999 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 (478928929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29534 + ... + 42779.

It is an arithmetic number, because the mean of its divisors is an integer number (61828470).

Almost surely, 2^478928999 is an apocalyptic number.

478928999 is a deficient number, since it is larger than the sum of its proper divisors (15698761).

478928999 is a wasteful number, since it uses less digits than its factorization.

478928999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72529.

The product of its digits is 23514624, while the sum is 65.

The square root of 478928999 is about 21884.4465088793. The cubic root of 478928999 is about 782.3907574771.

The spelling of 478928999 in words is "four hundred seventy-eight million, nine hundred twenty-eight thousand, nine hundred ninety-nine".