2945939 has 2 divisors, whose sum is σ = 2945940. Its totient is φ = 2945938.

The previous prime is 2945933. The next prime is 2945941. The reversal of 2945939 is 9395492.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2945939 - 2¹² = 2941843 is a prime.

Together with 2945941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2945896 and 2945905.

It is not a weakly prime, because it can be changed into another prime (2945933) 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, 1472969 + 1472970.

It is an arithmetic number, because the mean of its divisors is an integer number (1472970).

2^2945939 is an apocalyptic number.

2945939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2945939 is an equidigital number, since it uses as much as digits as its factorization.

2945939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 41.

The square root of 2945939 is about 1716.3737937874. The cubic root of 2945939 is about 143.3533731971.

The spelling of 2945939 in words is "two million, nine hundred forty-five thousand, nine hundred thirty-nine".