989006109 has 16 divisors (see below), whose sum is σ = 1622984832. Its totient is φ = 521673408.

The previous prime is 989006087. The next prime is 989006131. The reversal of 989006109 is 901600989.

It is an interprime number because it is at equal distance from previous prime (989006087) and next prime (989006131).

It is not a de Polignac number, because 989006109 - 2⁵ = 989006077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989006209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1811094 + ... + 1811639.

It is an arithmetic number, because the mean of its divisors is an integer number (101436552).

Almost surely, 2^989006109 is an apocalyptic number.

It is an amenable number.

989006109 is a deficient number, since it is larger than the sum of its proper divisors (633978723).

989006109 is a wasteful number, since it uses less digits than its factorization.

989006109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622756.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 989006109 is about 31448.4675143321. The cubic root of 989006109 is about 996.3218575214.

The spelling of 989006109 in words is "nine hundred eighty-nine million, six thousand, one hundred nine".