89888109 has 4 divisors (see below), whose sum is σ = 119850816. Its totient is φ = 59925404.

The previous prime is 89888089. The next prime is 89888119. The reversal of 89888109 is 90188898.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89888109 - 2⁵ = 89888077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89888119) 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, 14981349 + ... + 14981354.

It is an arithmetic number, because the mean of its divisors is an integer number (29962704).

Almost surely, 2^89888109 is an apocalyptic number.

It is an amenable number.

89888109 is a deficient number, since it is larger than the sum of its proper divisors (29962707).

89888109 is a wasteful number, since it uses less digits than its factorization.

89888109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29962706.

The product of its (nonzero) digits is 331776, while the sum is 51.

The square root of 89888109 is about 9480.9339729797. The cubic root of 89888109 is about 447.9546832484.

The spelling of 89888109 in words is "eighty-nine million, eight hundred eighty-eight thousand, one hundred nine".