2090873 has 2 divisors, whose sum is σ = 2090874. Its totient is φ = 2090872.

The previous prime is 2090863. The next prime is 2090923. The reversal of 2090873 is 3780902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1517824 + 573049 = 1232^2 + 757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2090873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2090843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045436 + 1045437.

It is an arithmetic number, because the mean of its divisors is an integer number (1045437).

2^2090873 is an apocalyptic number.

It is an amenable number.

2090873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090873 is an equidigital number, since it uses as much as digits as its factorization.

2090873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2090873 is about 1445.9851313205. The cubic root of 2090873 is about 127.8721257118.

Adding to 2090873 its sum of digits (29), we get a palindrome (2090902).

The spelling of 2090873 in words is "two million, ninety thousand, eight hundred seventy-three".