2190893 has 4 divisors (see below), whose sum is σ = 2241888. Its totient is φ = 2139900.

The previous prime is 2190887. The next prime is 2190901. The reversal of 2190893 is 3980912.

2190893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 2190893 - 2⁶ = 2190829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25433 + ... + 25518.

It is an arithmetic number, because the mean of its divisors is an integer number (560472).

2^2190893 is an apocalyptic number.

It is an amenable number.

2190893 is a deficient number, since it is larger than the sum of its proper divisors (50995).

2190893 is an equidigital number, since it uses as much as digits as its factorization.

2190893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50994.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 2190893 is about 1480.1665446834. The cubic root of 2190893 is about 129.8794345701.

The spelling of 2190893 in words is "two million, one hundred ninety thousand, eight hundred ninety-three".