30956089 has 2 divisors, whose sum is σ = 30956090. Its totient is φ = 30956088.

The previous prime is 30956053. The next prime is 30956117. The reversal of 30956089 is 98065903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26988025 + 3968064 = 5195^2 + 1992^2 .

It is a cyclic number.

It is not a de Polignac number, because 30956089 - 2⁷ = 30955961 is a prime.

It is not a weakly prime, because it can be changed into another prime (30956039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15478044 + 15478045.

It is an arithmetic number, because the mean of its divisors is an integer number (15478045).

Almost surely, 2^30956089 is an apocalyptic number.

It is an amenable number.

30956089 is a deficient number, since it is larger than the sum of its proper divisors (1).

30956089 is an equidigital number, since it uses as much as digits as its factorization.

30956089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 30956089 is about 5563.8196412177. The cubic root of 30956089 is about 313.9896713170.

The spelling of 30956089 in words is "thirty million, nine hundred fifty-six thousand, eighty-nine".