904441 has 2 divisors, whose sum is σ = 904442. Its totient is φ = 904440.

The previous prime is 904399. The next prime is 904459. The reversal of 904441 is 144409.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 674041 + 230400 = 821^2 + 480^2 .

It is an emirp because it is prime and its reverse (144409) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-904441 is a prime.

904441 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (901441) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452220 + 452221.

It is an arithmetic number, because the mean of its divisors is an integer number (452221).

2⁹⁰⁴⁴⁴¹ is an apocalyptic number.

It is an amenable number.

904441 is a deficient number, since it is larger than the sum of its proper divisors (1).

904441 is an equidigital number, since it uses as much as digits as its factorization.

904441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 904441 is about 951.0210302617. The cubic root of 904441 is about 96.7074830936.

The spelling of 904441 in words is "nine hundred four thousand, four hundred forty-one".