44975891 has 2 divisors, whose sum is σ = 44975892. Its totient is φ = 44975890.

The previous prime is 44975809. The next prime is 44975899. The reversal of 44975891 is 19857944.

44975891 is digitally balanced in base 2, 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-44975891 is a prime.

It is not a weakly prime, because it can be changed into another prime (44975899) 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, 22487945 + 22487946.

It is an arithmetic number, because the mean of its divisors is an integer number (22487946).

Almost surely, 2^44975891 is an apocalyptic number.

44975891 is a deficient number, since it is larger than the sum of its proper divisors (1).

44975891 is an equidigital number, since it uses as much as digits as its factorization.

44975891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The square root of 44975891 is about 6706.4067129872. The cubic root of 44975891 is about 355.6257982568.

The spelling of 44975891 in words is "forty-four million, nine hundred seventy-five thousand, eight hundred ninety-one".