2641391 has 2 divisors, whose sum is σ = 2641392. Its totient is φ = 2641390.

The previous prime is 2641369. The next prime is 2641411. The reversal of 2641391 is 1931462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2641391 - 2¹⁰ = 2640367 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2641391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2641351) 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, 1320695 + 1320696.

It is an arithmetic number, because the mean of its divisors is an integer number (1320696).

2^2641391 is an apocalyptic number.

2641391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641391 is an equidigital number, since it uses as much as digits as its factorization.

2641391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 2641391 is about 1625.2356752176. The cubic root of 2641391 is about 138.2327340724.

The spelling of 2641391 in words is "two million, six hundred forty-one thousand, three hundred ninety-one".