30109689 has 12 divisors (see below), whose sum is σ = 43617600. Its totient is φ = 20015064.

The previous prime is 30109687. The next prime is 30109721. The reversal of 30109689 is 98690103.

It is not a de Polignac number, because 30109689 - 2¹ = 30109687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30109687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1429 + ... + 7890.

It is an arithmetic number, because the mean of its divisors is an integer number (3634800).

Almost surely, 2^30109689 is an apocalyptic number.

It is an amenable number.

30109689 is a deficient number, since it is larger than the sum of its proper divisors (13507911).

30109689 is a wasteful number, since it uses less digits than its factorization.

30109689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684 (or 9681 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 30109689 is about 5487.2296288747. The cubic root of 30109689 is about 311.1014891251.

The spelling of 30109689 in words is "thirty million, one hundred nine thousand, six hundred eighty-nine".