89840159 has 2 divisors, whose sum is σ = 89840160. Its totient is φ = 89840158.

The previous prime is 89840131. The next prime is 89840161. The reversal of 89840159 is 95104898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89840159 - 2⁸ = 89839903 is a prime.

Together with 89840161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89840119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44920079 + 44920080.

It is an arithmetic number, because the mean of its divisors is an integer number (44920080).

Almost surely, 2^89840159 is an apocalyptic number.

89840159 is a deficient number, since it is larger than the sum of its proper divisors (1).

89840159 is an equidigital number, since it uses as much as digits as its factorization.

89840159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 89840159 is about 9478.4048763492. The cubic root of 89840159 is about 447.8750166207.

The spelling of 89840159 in words is "eighty-nine million, eight hundred forty thousand, one hundred fifty-nine".