478867 has 4 divisors (see below), whose sum is σ = 481096. Its totient is φ = 476640.

The previous prime is 478861. The next prime is 478871. The reversal of 478867 is 768874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768874 = 2 ⋅384437.

It is a cyclic number.

It is not a de Polignac number, because 478867 - 2⁷ = 478739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478861) 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, 753 + ... + 1234.

It is an arithmetic number, because the mean of its divisors is an integer number (120274).

2⁴⁷⁸⁸⁶⁷ is an apocalyptic number.

478867 is a deficient number, since it is larger than the sum of its proper divisors (2229).

478867 is a wasteful number, since it uses less digits than its factorization.

478867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228.

The product of its digits is 75264, while the sum is 40.

The square root of 478867 is about 692.0021676267. The cubic root of 478867 is about 78.2356994965.

The spelling of 478867 in words is "four hundred seventy-eight thousand, eight hundred sixty-seven".