2039491 has 2 divisors, whose sum is σ = 2039492. Its totient is φ = 2039490.

The previous prime is 2039467. The next prime is 2039501. The reversal of 2039491 is 1949302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2039491 - 2⁹ = 2038979 is a prime.

It is not a weakly prime, because it can be changed into another prime (2039461) 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, 1019745 + 1019746.

It is an arithmetic number, because the mean of its divisors is an integer number (1019746).

2^2039491 is an apocalyptic number.

2039491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2039491 is an equidigital number, since it uses as much as digits as its factorization.

2039491 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 2039491 is about 1428.1074889517. The cubic root of 2039491 is about 126.8159650774.

The spelling of 2039491 in words is "two million, thirty-nine thousand, four hundred ninety-one".