2099941 has 2 divisors, whose sum is σ = 2099942. Its totient is φ = 2099940.

The previous prime is 2099939. The next prime is 2099963. The reversal of 2099941 is 1499902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2090916 + 9025 = 1446^2 + 95^2 .

It is a cyclic number.

It is not a de Polignac number, because 2099941 - 2¹ = 2099939 is a prime.

Together with 2099939, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2099897 and 2099906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2099921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049970 + 1049971.

It is an arithmetic number, because the mean of its divisors is an integer number (1049971).

2^2099941 is an apocalyptic number.

It is an amenable number.

2099941 is a deficient number, since it is larger than the sum of its proper divisors (1).

2099941 is an equidigital number, since it uses as much as digits as its factorization.

2099941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 2099941 is about 1449.1173175420. The cubic root of 2099941 is about 128.0567172150.

The spelling of 2099941 in words is "two million, ninety-nine thousand, nine hundred forty-one".