904648 has 8 divisors (see below), whose sum is σ = 1696230. Its totient is φ = 452320.

The previous prime is 904643. The next prime is 904661. The reversal of 904648 is 846409.

It can be written as a sum of positive squares in only one way, i.e., 743044 + 161604 = 862^2 + 402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (904643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56533 + ... + 56548.

2⁹⁰⁴⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

904648 is a deficient number, since it is larger than the sum of its proper divisors (791582).

904648 is a wasteful number, since it uses less digits than its factorization.

904648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113087 (or 113083 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 904648 is about 951.1298544363. The cubic root of 904648 is about 96.7148603657.

The spelling of 904648 in words is "nine hundred four thousand, six hundred forty-eight".