30689117 has 4 divisors (see below), whose sum is σ = 30748320. Its totient is φ = 30629916.

The previous prime is 30689081. The next prime is 30689119. The reversal of 30689117 is 71198603.

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 30689117 - 2⁶ = 30689053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30689119) 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, 28817 + ... + 29862.

It is an arithmetic number, because the mean of its divisors is an integer number (7687080).

Almost surely, 2^30689117 is an apocalyptic number.

It is an amenable number.

30689117 is a deficient number, since it is larger than the sum of its proper divisors (59203).

30689117 is an equidigital number, since it uses as much as digits as its factorization.

30689117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59202.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 30689117 is about 5539.7758979944. The cubic root of 30689117 is about 313.0844257078.

The spelling of 30689117 in words is "thirty million, six hundred eighty-nine thousand, one hundred seventeen".