30327971 has 6 divisors (see below), whose sum is σ = 32008572. Its totient is φ = 28731420.

The previous prime is 30327967. The next prime is 30327989. The reversal of 30327971 is 17972303.

It is not a de Polignac number, because 30327971 - 2² = 30327967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30327911) 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 5 ways as a sum of consecutive naturals, for example, 41645 + ... + 42366.

It is an arithmetic number, because the mean of its divisors is an integer number (5334762).

Almost surely, 2^30327971 is an apocalyptic number.

30327971 is a deficient number, since it is larger than the sum of its proper divisors (1680601).

30327971 is an equidigital number, since it uses as much as digits as its factorization.

30327971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84049 (or 84030 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 30327971 is about 5507.0837110035. The cubic root of 30327971 is about 311.8514626890.

The spelling of 30327971 in words is "thirty million, three hundred twenty-seven thousand, nine hundred seventy-one".