4478685 has 8 divisors (see below), whose sum is σ = 7165920. Its totient is φ = 2388624.

The previous prime is 4478671. The next prime is 4478687. The reversal of 4478685 is 5868744.

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

It is not a de Polignac number, because 4478685 - 2⁵ = 4478653 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478687) 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, 149275 + ... + 149304.

It is an arithmetic number, because the mean of its divisors is an integer number (895740).

Almost surely, 2^4478685 is an apocalyptic number.

It is an amenable number.

4478685 is a deficient number, since it is larger than the sum of its proper divisors (2687235).

4478685 is a wasteful number, since it uses less digits than its factorization.

4478685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298587.

The product of its digits is 215040, while the sum is 42.

The square root of 4478685 is about 2116.2903865018. The cubic root of 4478685 is about 164.8352809789.

The spelling of 4478685 in words is "four million, four hundred seventy-eight thousand, six hundred eighty-five".