904479 has 4 divisors (see below), whose sum is σ = 1205976. Its totient is φ = 602984.

The previous prime is 904459. The next prime is 904483. The reversal of 904479 is 974409.

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 904479 - 2⁹ = 903967 is a prime.

It is a super-2 number, since 2×904479² = 1636164522882, which contains 22 as substring.

It is a D-number.

904479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904459) 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, 150744 + ... + 150749.

It is an arithmetic number, because the mean of its divisors is an integer number (301494).

2⁹⁰⁴⁴⁷⁹ is an apocalyptic number.

904479 is a deficient number, since it is larger than the sum of its proper divisors (301497).

904479 is a wasteful number, since it uses less digits than its factorization.

904479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301496.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 904479 is about 951.0410085795. The cubic root of 904479 is about 96.7088374598.

The spelling of 904479 in words is "nine hundred four thousand, four hundred seventy-nine".