2107939 has 2 divisors, whose sum is σ = 2107940. Its totient is φ = 2107938.

The previous prime is 2107913. The next prime is 2107961. The reversal of 2107939 is 9397012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2107939 - 2⁷ = 2107811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2107939.

It is not a weakly prime, because it can be changed into another prime (2107909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053969 + 1053970.

It is an arithmetic number, because the mean of its divisors is an integer number (1053970).

2^2107939 is an apocalyptic number.

2107939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2107939 is an equidigital number, since it uses as much as digits as its factorization.

2107939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2107939 is about 1451.8743058543. The cubic root of 2107939 is about 128.2190868702.

The spelling of 2107939 in words is "two million, one hundred seven thousand, nine hundred thirty-nine".