30689339 has 2 divisors, whose sum is σ = 30689340. Its totient is φ = 30689338.

The previous prime is 30689311. The next prime is 30689341. The reversal of 30689339 is 93398603.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30689339 - 2²⁰ = 29640763 is a prime.

Together with 30689341, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30689296 and 30689305.

It is not a weakly prime, because it can be changed into another prime (30689639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15344669 + 15344670.

It is an arithmetic number, because the mean of its divisors is an integer number (15344670).

Almost surely, 2^30689339 is an apocalyptic number.

30689339 is a deficient number, since it is larger than the sum of its proper divisors (1).

30689339 is an equidigital number, since it uses as much as digits as its factorization.

30689339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 30689339 is about 5539.7959348698. The cubic root of 30689339 is about 313.0851806396.

The spelling of 30689339 in words is "thirty million, six hundred eighty-nine thousand, three hundred thirty-nine".