904349 has 4 divisors (see below), whose sum is σ = 957564. Its totient is φ = 851136.

The previous prime is 904303. The next prime is 904357. The reversal of 904349 is 943409.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 669124 + 235225 = 818^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 904349 - 2⁸ = 904093 is a prime.

It is a super-2 number, since 2×904349² = 1635694227602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26582 + ... + 26615.

It is an arithmetic number, because the mean of its divisors is an integer number (239391).

2⁹⁰⁴³⁴⁹ is an apocalyptic number.

It is an amenable number.

904349 is a deficient number, since it is larger than the sum of its proper divisors (53215).

904349 is a wasteful number, since it uses less digits than its factorization.

904349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53214.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 904349 is about 950.9726599645. The cubic root of 904349 is about 96.7042039447.

Subtracting 904349 from its reverse (943409), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 904349 in words is "nine hundred four thousand, three hundred forty-nine".