2058691 has 2 divisors, whose sum is σ = 2058692. Its totient is φ = 2058690.

The previous prime is 2058677. The next prime is 2058697. The reversal of 2058691 is 1968502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2058691 - 2⁹ = 2058179 is a prime.

It is not a weakly prime, because it can be changed into another prime (2058697) 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 as a sum of consecutive naturals, namely, 1029345 + 1029346.

It is an arithmetic number, because the mean of its divisors is an integer number (1029346).

2^2058691 is an apocalyptic number.

2058691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2058691 is an equidigital number, since it uses as much as digits as its factorization.

2058691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2058691 is about 1434.8139252182. The cubic root of 2058691 is about 127.2126760768.

The spelling of 2058691 in words is "two million, fifty-eight thousand, six hundred ninety-one".