44111993 has 2 divisors, whose sum is σ = 44111994. Its totient is φ = 44111992.

The previous prime is 44111989. The next prime is 44112007. The reversal of 44111993 is 39911144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28015849 + 16096144 = 5293^2 + 4012^2 .

It is a cyclic number.

It is not a de Polignac number, because 44111993 - 2² = 44111989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (44117993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22055996 + 22055997.

It is an arithmetic number, because the mean of its divisors is an integer number (22055997).

Almost surely, 2^44111993 is an apocalyptic number.

It is an amenable number.

44111993 is a deficient number, since it is larger than the sum of its proper divisors (1).

44111993 is an equidigital number, since it uses as much as digits as its factorization.

44111993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 44111993 is about 6641.6860058271. The cubic root of 44111993 is about 353.3341057497.

The spelling of 44111993 in words is "forty-four million, one hundred eleven thousand, nine hundred ninety-three".