89722889 has 8 divisors (see below), whose sum is σ = 95120640. Its totient is φ = 84338496.

The previous prime is 89722879. The next prime is 89722901. The reversal of 89722889 is 98822798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89722889 - 2⁴ = 89722873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89722889.

It is not an unprimeable number, because it can be changed into a prime (89722879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12752 + ... + 18494.

It is an arithmetic number, because the mean of its divisors is an integer number (11890080).

Almost surely, 2^89722889 is an apocalyptic number.

It is an amenable number.

89722889 is a deficient number, since it is larger than the sum of its proper divisors (5397751).

89722889 is a wasteful number, since it uses less digits than its factorization.

89722889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6679.

The product of its digits is 1161216, while the sum is 53.

The square root of 89722889 is about 9472.2166888221. The cubic root of 89722889 is about 447.6800586229.

Subtracting 89722889 from its reverse (98822798), we obtain a palindrome (9099909).

The spelling of 89722889 in words is "eighty-nine million, seven hundred twenty-two thousand, eight hundred eighty-nine".