5440991 has 2 divisors, whose sum is σ = 5440992. Its totient is φ = 5440990.

The previous prime is 5440957. The next prime is 5440993. The reversal of 5440991 is 1990445.

5440991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5440991 is a prime.

Together with 5440993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5440993) 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, 2720495 + 2720496.

It is an arithmetic number, because the mean of its divisors is an integer number (2720496).

Almost surely, 2^5440991 is an apocalyptic number.

5440991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440991 is an equidigital number, since it uses as much as digits as its factorization.

5440991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 5440991 is about 2332.5931921362. The cubic root of 5440991 is about 175.8838657923.

The spelling of 5440991 in words is "five million, four hundred forty thousand, nine hundred ninety-one".