30980387 has 2 divisors, whose sum is σ = 30980388. Its totient is φ = 30980386.

The previous prime is 30980371. The next prime is 30980413. The reversal of 30980387 is 78308903.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30980387 - 2⁴ = 30980371 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30980387.

It is not a weakly prime, because it can be changed into another prime (30980357) 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, 15490193 + 15490194.

It is an arithmetic number, because the mean of its divisors is an integer number (15490194).

Almost surely, 2^30980387 is an apocalyptic number.

30980387 is a deficient number, since it is larger than the sum of its proper divisors (1).

30980387 is an equidigital number, since it uses as much as digits as its factorization.

30980387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 30980387 is about 5566.0027847639. The cubic root of 30980387 is about 314.0718019093.

The spelling of 30980387 in words is "thirty million, nine hundred eighty thousand, three hundred eighty-seven".