2190827 has 4 divisors (see below), whose sum is σ = 2193816. Its totient is φ = 2187840.

The previous prime is 2190823. The next prime is 2190829. The reversal of 2190827 is 7280912.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2190827 - 2² = 2190823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2190827.

It is not an unprimeable number, because it can be changed into a prime (2190821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (548454).

2^2190827 is an apocalyptic number.

2190827 is a deficient number, since it is larger than the sum of its proper divisors (2989).

2190827 is a wasteful number, since it uses less digits than its factorization.

2190827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2190827 is about 1480.1442497270. The cubic root of 2190827 is about 129.8781303639.

The spelling of 2190827 in words is "two million, one hundred ninety thousand, eight hundred twenty-seven".