2345891 has 2 divisors, whose sum is σ = 2345892. Its totient is φ = 2345890.

The previous prime is 2345887. The next prime is 2345909. The reversal of 2345891 is 1985432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2345891 - 2² = 2345887 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2345831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1172945 + 1172946.

It is an arithmetic number, because the mean of its divisors is an integer number (1172946).

2^2345891 is an apocalyptic number.

2345891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2345891 is an equidigital number, since it uses as much as digits as its factorization.

2345891 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 2345891 is about 1531.6301772948. The cubic root of 2345891 is about 132.8727559846.

The spelling of 2345891 in words is "two million, three hundred forty-five thousand, eight hundred ninety-one".