904049 has 2 divisors, whose sum is σ = 904050. Its totient is φ = 904048.

The previous prime is 904027. The next prime is 904067. The reversal of 904049 is 940409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 883600 + 20449 = 940^2 + 143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-904049 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (904019) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452024 + 452025.

It is an arithmetic number, because the mean of its divisors is an integer number (452025).

2⁹⁰⁴⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

904049 is a deficient number, since it is larger than the sum of its proper divisors (1).

904049 is an equidigital number, since it uses as much as digits as its factorization.

904049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 904049 is about 950.8149136399. The cubic root of 904049 is about 96.6935095226.

The spelling of 904049 in words is "nine hundred four thousand, forty-nine".