89081959 has 4 divisors (see below), whose sum is σ = 89190504. Its totient is φ = 88973416.

The previous prime is 89081953. The next prime is 89081963. The reversal of 89081959 is 95918098.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89081959 - 2⁷ = 89081831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89081953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53032 + ... + 54685.

It is an arithmetic number, because the mean of its divisors is an integer number (22297626).

Almost surely, 2^89081959 is an apocalyptic number.

89081959 is a deficient number, since it is larger than the sum of its proper divisors (108545).

89081959 is a wasteful number, since it uses less digits than its factorization.

89081959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108544.

The product of its (nonzero) digits is 233280, while the sum is 49.

The square root of 89081959 is about 9438.3239507870. The cubic root of 89081959 is about 446.6115184630.

The spelling of 89081959 in words is "eighty-nine million, eighty-one thousand, nine hundred fifty-nine".