4444091 has 2 divisors, whose sum is σ = 4444092. Its totient is φ = 4444090.

The previous prime is 4444087. The next prime is 4444109. The reversal of 4444091 is 1904444.

Together with next prime (4444109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4444091 - 2² = 4444087 is a prime.

It is a Sophie Germain 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 4444091.

It is not a weakly prime, because it can be changed into another prime (4444001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222045 + 2222046.

It is an arithmetic number, because the mean of its divisors is an integer number (2222046).

Almost surely, 2^4444091 is an apocalyptic number.

4444091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444091 is an equidigital number, since it uses as much as digits as its factorization.

4444091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 4444091 is about 2108.1012784020. The cubic root of 4444091 is about 164.4097798284.

The spelling of 4444091 in words is "four million, four hundred forty-four thousand, ninety-one".