2439091 has 2 divisors, whose sum is σ = 2439092. Its totient is φ = 2439090.

The previous prime is 2439083. The next prime is 2439097. The reversal of 2439091 is 1909342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2439091 - 2³ = 2439083 is a prime.

It is not a weakly prime, because it can be changed into another prime (2439097) 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, 1219545 + 1219546.

It is an arithmetic number, because the mean of its divisors is an integer number (1219546).

2^2439091 is an apocalyptic number.

2439091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2439091 is an equidigital number, since it uses as much as digits as its factorization.

2439091 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 2439091 is about 1561.7589442676. The cubic root of 2439091 is about 134.6095899295.

The spelling of 2439091 in words is "two million, four hundred thirty-nine thousand, ninety-one".