30989107 has 4 divisors (see below), whose sum is σ = 31034016. Its totient is φ = 30944200.

The previous prime is 30989087. The next prime is 30989117. The reversal of 30989107 is 70198903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70198903 = 5417 ⋅12959.

It is a cyclic number.

It is not a de Polignac number, because 30989107 - 2¹¹ = 30987059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30989117) 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, 21403 + ... + 22804.

It is an arithmetic number, because the mean of its divisors is an integer number (7758504).

Almost surely, 2^30989107 is an apocalyptic number.

30989107 is a deficient number, since it is larger than the sum of its proper divisors (44909).

30989107 is an equidigital number, since it uses as much as digits as its factorization.

30989107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44908.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 30989107 is about 5566.7860566039. The cubic root of 30989107 is about 314.1012662410.

The spelling of 30989107 in words is "thirty million, nine hundred eighty-nine thousand, one hundred seven".