1003966 has 8 divisors (see below), whose sum is σ = 1554624. Its totient is φ = 485760.

The previous prime is 1003963. The next prime is 1004027. The reversal of 1003966 is 6693001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1003966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003963) 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 3 ways as a sum of consecutive naturals, for example, 8035 + ... + 8158.

It is an arithmetic number, because the mean of its divisors is an integer number (194328).

2^1003966 is an apocalyptic number.

1003966 is a deficient number, since it is larger than the sum of its proper divisors (550658).

1003966 is a wasteful number, since it uses less digits than its factorization.

1003966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16226.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1003966 is about 1001.9810377447. The cubic root of 1003966 is about 100.1320256157.

Adding to 1003966 its reverse (6693001), we get a palindrome (7696967).

The spelling of 1003966 in words is "one million, three thousand, nine hundred sixty-six".