88444189 has 2 divisors, whose sum is σ = 88444190. Its totient is φ = 88444188.

The previous prime is 88444141. The next prime is 88444199. The reversal of 88444189 is 98144488.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54022500 + 34421689 = 7350^2 + 5867^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88444189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88444199) 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, 44222094 + 44222095.

It is an arithmetic number, because the mean of its divisors is an integer number (44222095).

Almost surely, 2^88444189 is an apocalyptic number.

It is an amenable number.

88444189 is a deficient number, since it is larger than the sum of its proper divisors (1).

88444189 is an equidigital number, since it uses as much as digits as its factorization.

88444189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294912, while the sum is 46.

The square root of 88444189 is about 9404.4770721184. The cubic root of 88444189 is about 445.5431469147.

The spelling of 88444189 in words is "eighty-eight million, four hundred forty-four thousand, one hundred eighty-nine".