41109989 has 2 divisors, whose sum is σ = 41109990. Its totient is φ = 41109988.

The previous prime is 41109973. The next prime is 41110031. The reversal of 41109989 is 98990114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22877089 + 18232900 = 4783^2 + 4270^2 .

It is a cyclic number.

It is not a de Polignac number, because 41109989 - 2⁴ = 41109973 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 (41109919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20554994 + 20554995.

It is an arithmetic number, because the mean of its divisors is an integer number (20554995).

Almost surely, 2^41109989 is an apocalyptic number.

It is an amenable number.

41109989 is a deficient number, since it is larger than the sum of its proper divisors (1).

41109989 is an equidigital number, since it uses as much as digits as its factorization.

41109989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 41109989 is about 6411.7071829584. The cubic root of 41109989 is about 345.1297950331.

The spelling of 41109989 in words is "forty-one million, one hundred nine thousand, nine hundred eighty-nine".