2845391 has 2 divisors, whose sum is σ = 2845392. Its totient is φ = 2845390.

The previous prime is 2845387. The next prime is 2845417. The reversal of 2845391 is 1935482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2845391 - 2² = 2845387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2845361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1422695 + 1422696.

It is an arithmetic number, because the mean of its divisors is an integer number (1422696).

2^2845391 is an apocalyptic number.

2845391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2845391 is an equidigital number, since it uses as much as digits as its factorization.

2845391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 2845391 is about 1686.8286812833. The cubic root of 2845391 is about 141.7035241278.

Subtracting from 2845391 its reverse (1935482), we obtain a palindrome (909909).

The spelling of 2845391 in words is "two million, eight hundred forty-five thousand, three hundred ninety-one".