30880849 has 2 divisors, whose sum is σ = 30880850. Its totient is φ = 30880848.

The previous prime is 30880847. The next prime is 30880877. The reversal of 30880849 is 94808803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26010000 + 4870849 = 5100^2 + 2207^2 .

It is a cyclic number.

It is not a de Polignac number, because 30880849 - 2¹ = 30880847 is a prime.

Together with 30880847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30880841) 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, 15440424 + 15440425.

It is an arithmetic number, because the mean of its divisors is an integer number (15440425).

Almost surely, 2^30880849 is an apocalyptic number.

It is an amenable number.

30880849 is a deficient number, since it is larger than the sum of its proper divisors (1).

30880849 is an equidigital number, since it uses as much as digits as its factorization.

30880849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 30880849 is about 5557.0539857014. The cubic root of 30880849 is about 313.7350768287.

The spelling of 30880849 in words is "thirty million, eight hundred eighty thousand, eight hundred forty-nine".