1003662 has 48 divisors (see below), whose sum is σ = 2454192. Its totient is φ = 293760.

The previous prime is 1003631. The next prime is 1003679. The reversal of 1003662 is 2663001.

It is a happy number.

1003662 is a `hidden beast` number, since 1 + 0 + 0 + 3 + 662 = 666.

1003662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7258 + ... + 7394.

It is an arithmetic number, because the mean of its divisors is an integer number (51129).

2^1003662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1003662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1227096).

1003662 is an abundant number, since it is smaller than the sum of its proper divisors (1450530).

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

1003662 is a wasteful number, since it uses less digits than its factorization.

1003662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1003662 is about 1001.8293267818. The cubic root of 1003662 is about 100.1219179664.

Adding to 1003662 its reverse (2663001), we get a palindrome (3666663).

The spelling of 1003662 in words is "one million, three thousand, six hundred sixty-two".