1103988 has 24 divisors (see below), whose sum is σ = 2594592. Its totient is φ = 365344.

The previous prime is 1103987. The next prime is 1103989. The reversal of 1103988 is 8893011.

1103988 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (1103987) and next prime (1103989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2131 + ... + 2597.

It is an arithmetic number, because the mean of its divisors is an integer number (108108).

2^1103988 is an apocalyptic number.

It is an amenable number.

1103988 is an abundant number, since it is smaller than the sum of its proper divisors (1490604).

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

1103988 is a wasteful number, since it uses less digits than its factorization.

1103988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1103988 is about 1050.7083325072. The cubic root of 1103988 is about 103.3526105786.

Adding to 1103988 its reverse (8893011), we get a palindrome (9996999).

The spelling of 1103988 in words is "one million, one hundred three thousand, nine hundred eighty-eight".