478485791 has 8 divisors (see below), whose sum is σ = 579008160. Its totient is φ = 386005248.

The previous prime is 478485781. The next prime is 478485841. The reversal of 478485791 is 197584874.

It is a happy number.

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-478485791 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 (478485781) 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, 2010326 + ... + 2010563.

It is an arithmetic number, because the mean of its divisors is an integer number (72376020).

Almost surely, 2^478485791 is an apocalyptic number.

478485791 is a deficient number, since it is larger than the sum of its proper divisors (100522369).

478485791 is a wasteful number, since it uses less digits than its factorization.

478485791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020913.

The product of its digits is 2257920, while the sum is 53.

The square root of 478485791 is about 21874.3180693708. The cubic root of 478485791 is about 782.1493376530.

The spelling of 478485791 in words is "four hundred seventy-eight million, four hundred eighty-five thousand, seven hundred ninety-one".