904469 has 4 divisors (see below), whose sum is σ = 917280. Its totient is φ = 891660.

The previous prime is 904459. The next prime is 904483. The reversal of 904469 is 964409.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 964409 = 673 ⋅1433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-904469 is a prime.

It is a super-2 number, since 2×904469² = 1636128343922, which contains 22 as substring.

It is a Duffinian 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6299 + ... + 6440.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

2⁹⁰⁴⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

904469 is a deficient number, since it is larger than the sum of its proper divisors (12811).

904469 is a wasteful number, since it uses less digits than its factorization.

904469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12810.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 904469 is about 951.0357511682. The cubic root of 904469 is about 96.7084810513.

The spelling of 904469 in words is "nine hundred four thousand, four hundred sixty-nine".