904686049 has 2 divisors, whose sum is σ = 904686050. Its totient is φ = 904686048.

The previous prime is 904686043. The next prime is 904686061. The reversal of 904686049 is 940686409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872139024 + 32547025 = 29532^2 + 5705^2 .

It is a cyclic number.

It is not a de Polignac number, because 904686049 - 2²⁵ = 871131617 is a prime.

It is not a weakly prime, because it can be changed into another prime (904686043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452343024 + 452343025.

It is an arithmetic number, because the mean of its divisors is an integer number (452343025).

Almost surely, 2^904686049 is an apocalyptic number.

It is an amenable number.

904686049 is a deficient number, since it is larger than the sum of its proper divisors (1).

904686049 is an equidigital number, since it uses as much as digits as its factorization.

904686049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 904686049 is about 30077.9994181794. Note that the first 3 decimals coincide. The cubic root of 904686049 is about 967.1621627135.

The spelling of 904686049 in words is "nine hundred four million, six hundred eighty-six thousand, forty-nine".