89308871 has 4 divisors (see below), whose sum is σ = 94562352. Its totient is φ = 84055392.

The previous prime is 89308853. The next prime is 89308907. The reversal of 89308871 is 17880398.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89308871 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 (89308811) 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, 2626715 + ... + 2626748.

It is an arithmetic number, because the mean of its divisors is an integer number (23640588).

Almost surely, 2^89308871 is an apocalyptic number.

89308871 is a deficient number, since it is larger than the sum of its proper divisors (5253481).

89308871 is a wasteful number, since it uses less digits than its factorization.

89308871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253480.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 89308871 is about 9450.3370839352. The cubic root of 89308871 is about 446.9904039633.

The spelling of 89308871 in words is "eighty-nine million, three hundred eight thousand, eight hundred seventy-one".