478635 has 16 divisors (see below), whose sum is σ = 811296. Its totient is φ = 240128.

The previous prime is 478631. The next prime is 478637. The reversal of 478635 is 536874.

It is a cyclic number.

It is not a de Polignac number, because 478635 - 2² = 478631 is a prime.

It is an Ulam number.

478635 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 478596 and 478605.

It is not an unprimeable number, because it can be changed into a prime (478631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684 + ... + 1193.

It is an arithmetic number, because the mean of its divisors is an integer number (50706).

2⁴⁷⁸⁶³⁵ is an apocalyptic number.

478635 is a deficient number, since it is larger than the sum of its proper divisors (332661).

478635 is a wasteful number, since it uses less digits than its factorization.

478635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902.

The product of its digits is 20160, while the sum is 33.

The square root of 478635 is about 691.8345177859. The cubic root of 478635 is about 78.2230629925.

The spelling of 478635 in words is "four hundred seventy-eight thousand, six hundred thirty-five".