30873769 has 2 divisors, whose sum is σ = 30873770. Its totient is φ = 30873768.

The previous prime is 30873767. The next prime is 30873793. The reversal of 30873769 is 96737803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30085225 + 788544 = 5485^2 + 888^2 .

It is a cyclic number.

It is not a de Polignac number, because 30873769 - 2¹ = 30873767 is a prime.

It is a super-2 number, since 2×30873769² = 1906379224530722, which contains 22 as substring.

Together with 30873767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30873761) 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, 15436884 + 15436885.

It is an arithmetic number, because the mean of its divisors is an integer number (15436885).

Almost surely, 2^30873769 is an apocalyptic number.

It is an amenable number.

30873769 is a deficient number, since it is larger than the sum of its proper divisors (1).

30873769 is an equidigital number, since it uses as much as digits as its factorization.

30873769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 30873769 is about 5556.4169210022. The cubic root of 30873769 is about 313.7110984927.

The spelling of 30873769 in words is "thirty million, eight hundred seventy-three thousand, seven hundred sixty-nine".