904672849 has 2 divisors, whose sum is σ = 904672850. Its totient is φ = 904672848.

The previous prime is 904672843. The next prime is 904672871. The reversal of 904672849 is 948276409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 830592400 + 74080449 = 28820^2 + 8607^2 .

It is an emirp because it is prime and its reverse (948276409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 904672849 - 2⁵ = 904672817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (904672843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452336424 + 452336425.

It is an arithmetic number, because the mean of its divisors is an integer number (452336425).

Almost surely, 2^904672849 is an apocalyptic number.

It is an amenable number.

904672849 is a deficient number, since it is larger than the sum of its proper divisors (1).

904672849 is an equidigital number, since it uses as much as digits as its factorization.

904672849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 904672849 is about 30077.7799878914. The cubic root of 904672849 is about 967.1574588340.

The spelling of 904672849 in words is "nine hundred four million, six hundred seventy-two thousand, eight hundred forty-nine".