2586391 has 2 divisors, whose sum is σ = 2586392. Its totient is φ = 2586390.

The previous prime is 2586379. The next prime is 2586421. The reversal of 2586391 is 1936852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2586391 - 2⁵ = 2586359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2586301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293195 + 1293196.

It is an arithmetic number, because the mean of its divisors is an integer number (1293196).

2^2586391 is an apocalyptic number.

2586391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2586391 is an equidigital number, since it uses as much as digits as its factorization.

2586391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 2586391 is about 1608.2260413263. The cubic root of 2586391 is about 137.2665526379.

The spelling of 2586391 in words is "two million, five hundred eighty-six thousand, three hundred ninety-one".