1102889 has 4 divisors (see below), whose sum is σ = 1111440. Its totient is φ = 1094340.

The previous prime is 1102883. The next prime is 1102891. The reversal of 1102889 is 9882011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1102883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4079 + ... + 4340.

It is an arithmetic number, because the mean of its divisors is an integer number (277860).

2^1102889 is an apocalyptic number.

It is an amenable number.

1102889 is a deficient number, since it is larger than the sum of its proper divisors (8551).

1102889 is an equidigital number, since it uses as much as digits as its factorization.

1102889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8550.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1102889 is about 1050.1852217585. The cubic root of 1102889 is about 103.3183039767.

It can be divided in two parts, 1102 and 889, that added together give a palindrome (1991).

The spelling of 1102889 in words is "one million, one hundred two thousand, eight hundred eighty-nine".