1000904 has 8 divisors (see below), whose sum is σ = 1876710. Its totient is φ = 500448.

The previous prime is 1000889. The next prime is 1000907. The reversal of 1000904 is 4090001.

1000904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 996004 + 4900 = 998^2 + 70^2 .

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 (1000907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62549 + ... + 62564.

2^1000904 is an apocalyptic number.

It is an amenable number.

1000904 is a deficient number, since it is larger than the sum of its proper divisors (875806).

1000904 is a wasteful number, since it uses less digits than its factorization.

1000904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125119 (or 125115 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1000904 is about 1000.4518978941. The cubic root of 1000904 is about 100.0301242577.

Adding to 1000904 its reverse (4090001), we get a palindrome (5090905).

The spelling of 1000904 in words is "one million, nine hundred four", and thus it is an aban number.