478478285 has 8 divisors (see below), whose sum is σ = 574458360. Its totient is φ = 382593024.

The previous prime is 478478263. The next prime is 478478293. The reversal of 478478285 is 582874874.

It can be written as a sum of positive squares in 4 ways, for example, as 7327849 + 471150436 = 2707^2 + 21706^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 478478285 - 2¹² = 478474189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12080 + ... + 33209.

It is an arithmetic number, because the mean of its divisors is an integer number (71807295).

Almost surely, 2^478478285 is an apocalyptic number.

It is an amenable number.

478478285 is a deficient number, since it is larger than the sum of its proper divisors (95980075).

478478285 is a wasteful number, since it uses less digits than its factorization.

478478285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47407.

The product of its digits is 4014080, while the sum is 53.

The square root of 478478285 is about 21874.1464976351. The cubic root of 478478285 is about 782.1452477764.

The spelling of 478478285 in words is "four hundred seventy-eight million, four hundred seventy-eight thousand, two hundred eighty-five".