30832047 has 12 divisors (see below), whose sum is σ = 45483360. Its totient is φ = 20117088.

The previous prime is 30832027. The next prime is 30832051. The reversal of 30832047 is 74023803.

It is not a de Polignac number, because 30832047 - 2⁷ = 30831919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30832047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30832027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36022 + ... + 36867.

It is an arithmetic number, because the mean of its divisors is an integer number (3790280).

Almost surely, 2^30832047 is an apocalyptic number.

30832047 is a deficient number, since it is larger than the sum of its proper divisors (14651313).

30832047 is a wasteful number, since it uses less digits than its factorization.

30832047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72942 (or 72939 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 30832047 is about 5552.6612538494. The cubic root of 30832047 is about 313.5697211445.

The spelling of 30832047 in words is "thirty million, eight hundred thirty-two thousand, forty-seven".