2058391 has 4 divisors (see below), whose sum is σ = 2129400. Its totient is φ = 1987384.

The previous prime is 2058389. The next prime is 2058401. The reversal of 2058391 is 1938502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2058391 - 2¹ = 2058389 is a prime.

It is a Duffinian number.

2058391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2058311) 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, 35461 + ... + 35518.

It is an arithmetic number, because the mean of its divisors is an integer number (532350).

2^2058391 is an apocalyptic number.

2058391 is a deficient number, since it is larger than the sum of its proper divisors (71009).

2058391 is an equidigital number, since it uses as much as digits as its factorization.

2058391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71008.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2058391 is about 1434.7093782366. The cubic root of 2058391 is about 127.2064964774.

The spelling of 2058391 in words is "two million, fifty-eight thousand, three hundred ninety-one".