44891393 has 2 divisors, whose sum is σ = 44891394. Its totient is φ = 44891392.

The previous prime is 44891387. The next prime is 44891453. The reversal of 44891393 is 39319844.

44891393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43784689 + 1106704 = 6617^2 + 1052^2 .

It is a cyclic number.

It is not a de Polignac number, because 44891393 - 2⁸ = 44891137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44891393.

It is not a weakly prime, because it can be changed into another prime (44891593) 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, 22445696 + 22445697.

It is an arithmetic number, because the mean of its divisors is an integer number (22445697).

Almost surely, 2^44891393 is an apocalyptic number.

It is an amenable number.

44891393 is a deficient number, since it is larger than the sum of its proper divisors (1).

44891393 is an equidigital number, since it uses as much as digits as its factorization.

44891393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 41.

The square root of 44891393 is about 6700.1039544174. The cubic root of 44891393 is about 355.4029491836.

The spelling of 44891393 in words is "forty-four million, eight hundred ninety-one thousand, three hundred ninety-three".