105089889 has 4 divisors (see below), whose sum is σ = 140119856. Its totient is φ = 70059924.

The previous prime is 105089861. The next prime is 105089891. The reversal of 105089889 is 988980501.

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 not a de Polignac number, because 105089889 - 2⁵ = 105089857 is a prime.

It is a super-2 number, since 2×105089889² = 22087769540064642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105089819) 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, 17514979 + ... + 17514984.

It is an arithmetic number, because the mean of its divisors is an integer number (35029964).

Almost surely, 2^105089889 is an apocalyptic number.

It is an amenable number.

105089889 is a deficient number, since it is larger than the sum of its proper divisors (35029967).

105089889 is an equidigital number, since it uses as much as digits as its factorization.

105089889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35029966.

The product of its (nonzero) digits is 207360, while the sum is 48.

The square root of 105089889 is about 10251.3359617174. The cubic root of 105089889 is about 471.9039846471.

The spelling of 105089889 in words is "one hundred five million, eighty-nine thousand, eight hundred eighty-nine".