30368489 has 2 divisors, whose sum is σ = 30368490. Its totient is φ = 30368488.

The previous prime is 30368483. The next prime is 30368497. The reversal of 30368489 is 98486303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25000000 + 5368489 = 5000^2 + 2317^2 .

It is an emirp because it is prime and its reverse (98486303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30368489 - 2⁴ = 30368473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30368483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15184244 + 15184245.

It is an arithmetic number, because the mean of its divisors is an integer number (15184245).

Almost surely, 2^30368489 is an apocalyptic number.

It is an amenable number.

30368489 is a deficient number, since it is larger than the sum of its proper divisors (1).

30368489 is an equidigital number, since it uses as much as digits as its factorization.

30368489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 30368489 is about 5510.7611996892. The cubic root of 30368489 is about 311.9902781597.

The spelling of 30368489 in words is "thirty million, three hundred sixty-eight thousand, four hundred eighty-nine".