1003968 has 112 divisors (see below), whose sum is σ = 3413760. Its totient is φ = 283392.

The previous prime is 1003963. The next prime is 1004027. The reversal of 1003968 is 8693001.

1003968 = 44³ + 45³ + ... + 52³.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12055 + ... + 12137.

It is an arithmetic number, because the mean of its divisors is an integer number (30480).

2^1003968 is an apocalyptic number.

1003968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1003968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706880).

1003968 is an abundant number, since it is smaller than the sum of its proper divisors (2409792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1003968 is an equidigital number, since it uses as much as digits as its factorization.

1003968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1003968 is about 1001.9820357671. The cubic root of 1003968 is about 100.1320921066.

Adding to 1003968 its reverse (8693001), we get a palindrome (9696969).

The spelling of 1003968 in words is "one million, three thousand, nine hundred sixty-eight".