2719391 has 2 divisors, whose sum is σ = 2719392. Its totient is φ = 2719390.

The previous prime is 2719357. The next prime is 2719393. The reversal of 2719391 is 1939172.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2719391 - 2¹⁰ = 2718367 is a prime.

Together with 2719393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2719393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1359695 + 1359696.

It is an arithmetic number, because the mean of its divisors is an integer number (1359696).

2^2719391 is an apocalyptic number.

2719391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2719391 is an equidigital number, since it uses as much as digits as its factorization.

2719391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 32.

The square root of 2719391 is about 1649.0576096668. The cubic root of 2719391 is about 139.5802221826.

The spelling of 2719391 in words is "two million, seven hundred nineteen thousand, three hundred ninety-one".