4478867 has 4 divisors (see below), whose sum is σ = 4554840. Its totient is φ = 4402896.

The previous prime is 4478863. The next prime is 4478869. The reversal of 4478867 is 7688744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4478867 - 2² = 4478863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4478861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37898 + ... + 38015.

It is an arithmetic number, because the mean of its divisors is an integer number (1138710).

Almost surely, 2^4478867 is an apocalyptic number.

4478867 is a deficient number, since it is larger than the sum of its proper divisors (75973).

4478867 is an equidigital number, since it uses as much as digits as its factorization.

4478867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75972.

The product of its digits is 301056, while the sum is 44.

The square root of 4478867 is about 2116.3333858350. Note that the first 4 decimals coincide. The cubic root of 4478867 is about 164.8375137485.

The spelling of 4478867 in words is "four million, four hundred seventy-eight thousand, eight hundred sixty-seven".