1003975 has 12 divisors (see below), whose sum is σ = 1423024. Its totient is φ = 688320.

The previous prime is 1003963. The next prime is 1004027. The reversal of 1003975 is 5793001.

It is not a de Polignac number, because 1003975 - 2⁵ = 1003943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

1003975 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2694 + ... + 3043.

2^1003975 is an apocalyptic number.

1003975 is a deficient number, since it is larger than the sum of its proper divisors (419049).

1003975 is an equidigital number, since it uses as much as digits as its factorization.

1003975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754 (or 5749 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 1003975 is about 1001.9855288376. The cubic root of 1003975 is about 100.1323248242.

Adding to 1003975 its reverse (5793001), we get a palindrome (6796976).

The spelling of 1003975 in words is "one million, three thousand, nine hundred seventy-five".