2189803 has 8 divisors (see below), whose sum is σ = 2730240. Its totient is φ = 1706280.

The previous prime is 2189797. The next prime is 2189813. The reversal of 2189803 is 3089812.

2189803 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2189803 - 2¹³ = 2181611 is a prime.

It is a Duffinian number.

2189803 is strictly pandigital in base 8.

2189803 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2189813) 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, 14143 + ... + 14296.

It is an arithmetic number, because the mean of its divisors is an integer number (341280).

2^2189803 is an apocalyptic number.

2189803 is a deficient number, since it is larger than the sum of its proper divisors (540437).

2189803 is a wasteful number, since it uses less digits than its factorization.

2189803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28457.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2189803 is about 1479.7982970662. The cubic root of 2189803 is about 129.8578920503.

Subtracting 2189803 from its reverse (3089812), we obtain a palindrome (900009).

It can be divided in two parts, 2189 and 803, that added together give a palindrome (2992).

The spelling of 2189803 in words is "two million, one hundred eighty-nine thousand, eight hundred three".