2082391 has 2 divisors, whose sum is σ = 2082392. Its totient is φ = 2082390.

The previous prime is 2082341. The next prime is 2082413. The reversal of 2082391 is 1932802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2082391 - 2¹¹ = 2080343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2082341) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1041195 + 1041196.

It is an arithmetic number, because the mean of its divisors is an integer number (1041196).

2^2082391 is an apocalyptic number.

2082391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2082391 is an equidigital number, since it uses as much as digits as its factorization.

2082391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2082391 is about 1443.0492022104. The cubic root of 2082391 is about 127.6989793236.

The spelling of 2082391 in words is "two million, eighty-two thousand, three hundred ninety-one".