1004663 has 18 divisors (see below), whose sum is σ = 1216152. Its totient is φ = 827640.

The previous prime is 1004659. The next prime is 1004669. The reversal of 1004663 is 3664001.

It is not a de Polignac number, because 1004663 - 2² = 1004659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 43670 + ... + 43692.

It is an arithmetic number, because the mean of its divisors is an integer number (67564).

2^1004663 is an apocalyptic number.

1004663 is a deficient number, since it is larger than the sum of its proper divisors (211489).

1004663 is a wasteful number, since it uses less digits than its factorization.

1004663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1004663 is about 1002.3287883724. The cubic root of 1004663 is about 100.1551923620.

Adding to 1004663 its reverse (3664001), we get a palindrome (4668664).

The spelling of 1004663 in words is "one million, four thousand, six hundred sixty-three".