2916391 has 2 divisors, whose sum is σ = 2916392. Its totient is φ = 2916390.

The previous prime is 2916383. The next prime is 2916409. The reversal of 2916391 is 1936192.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2916391 - 2³ = 2916383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2916691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1458195 + 1458196.

It is an arithmetic number, because the mean of its divisors is an integer number (1458196).

2^2916391 is an apocalyptic number.

2916391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2916391 is an equidigital number, since it uses as much as digits as its factorization.

2916391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 31.

The square root of 2916391 is about 1707.7444188168. The cubic root of 2916391 is about 142.8724799248.

The spelling of 2916391 in words is "two million, nine hundred sixteen thousand, three hundred ninety-one".