30809673 has 16 divisors (see below), whose sum is σ = 47629440. Its totient is φ = 19646352.

The previous prime is 30809671. The next prime is 30809677. The reversal of 30809673 is 37690803.

It is not a de Polignac number, because 30809673 - 2¹ = 30809671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30809671) 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 in 15 ways as a sum of consecutive naturals, for example, 24186 + ... + 25427.

It is an arithmetic number, because the mean of its divisors is an integer number (2976840).

Almost surely, 2^30809673 is an apocalyptic number.

It is an amenable number.

30809673 is a deficient number, since it is larger than the sum of its proper divisors (16819767).

30809673 is a wasteful number, since it uses less digits than its factorization.

30809673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49645 (or 49639 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 30809673 is about 5550.6461785994. The cubic root of 30809673 is about 313.4938530422.

The spelling of 30809673 in words is "thirty million, eight hundred nine thousand, six hundred seventy-three".