2439901 has 2 divisors, whose sum is σ = 2439902. Its totient is φ = 2439900.

The previous prime is 2439893. The next prime is 2439907. The reversal of 2439901 is 1099342.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1232100 + 1207801 = 1110^2 + 1099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2439901 - 2³ = 2439893 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2439901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2439907) 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, 1219950 + 1219951.

It is an arithmetic number, because the mean of its divisors is an integer number (1219951).

2^2439901 is an apocalyptic number.

It is an amenable number.

2439901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2439901 is an equidigital number, since it uses as much as digits as its factorization.

2439901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 2439901 is about 1562.0182457321. The cubic root of 2439901 is about 134.6244891550.

The spelling of 2439901 in words is "two million, four hundred thirty-nine thousand, nine hundred one".