88931189 has 2 divisors, whose sum is σ = 88931190. Its totient is φ = 88931188.

The previous prime is 88931159. The next prime is 88931251. The reversal of 88931189 is 98113988.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80694289 + 8236900 = 8983^2 + 2870^2 .

It is a cyclic number.

It is not a de Polignac number, because 88931189 - 2¹⁶ = 88865653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88931159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44465594 + 44465595.

It is an arithmetic number, because the mean of its divisors is an integer number (44465595).

Almost surely, 2^88931189 is an apocalyptic number.

It is an amenable number.

88931189 is a deficient number, since it is larger than the sum of its proper divisors (1).

88931189 is an equidigital number, since it uses as much as digits as its factorization.

88931189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 47.

The square root of 88931189 is about 9430.3334511564. Note that the first 3 decimals coincide. The cubic root of 88931189 is about 446.3594148820.

The spelling of 88931189 in words is "eighty-eight million, nine hundred thirty-one thousand, one hundred eighty-nine".