30871713 has 16 divisors (see below), whose sum is σ = 43721280. Its totient is φ = 19321344.

The previous prime is 30871693. The next prime is 30871739. The reversal of 30871713 is 31717803.

It is not a de Polignac number, because 30871713 - 2²¹ = 28774561 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30871793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4045 + ... + 8837.

It is an arithmetic number, because the mean of its divisors is an integer number (2732580).

Almost surely, 2^30871713 is an apocalyptic number.

It is an amenable number.

30871713 is a deficient number, since it is larger than the sum of its proper divisors (12849567).

30871713 is a wasteful number, since it uses less digits than its factorization.

30871713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 30871713 is about 5556.2319066072. The cubic root of 30871713 is about 313.7041346054.

The spelling of 30871713 in words is "thirty million, eight hundred seventy-one thousand, seven hundred thirteen".