478969 has 4 divisors (see below), whose sum is σ = 480420. Its totient is φ = 477520.

The previous prime is 478967. The next prime is 478991. The reversal of 478969 is 969874.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 345744 + 133225 = 588^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 478969 - 2¹ = 478967 is a prime.

It is a super-2 number, since 2×478969² = 458822605922, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39 + ... + 979.

It is an arithmetic number, because the mean of its divisors is an integer number (120105).

2⁴⁷⁸⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

478969 is a deficient number, since it is larger than the sum of its proper divisors (1451).

478969 is an equidigital number, since it uses as much as digits as its factorization.

478969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450.

The product of its digits is 108864, while the sum is 43.

The square root of 478969 is about 692.0758628937. The cubic root of 478969 is about 78.2412539092.

The spelling of 478969 in words is "four hundred seventy-eight thousand, nine hundred sixty-nine".