30467947 has 8 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 29421480.

The previous prime is 30467933. The next prime is 30467953. The reversal of 30467947 is 74976403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30467947 - 2¹¹ = 30465899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30467977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20454 + ... + 21892.

It is an arithmetic number, because the mean of its divisors is an integer number (3939840).

Almost surely, 2^30467947 is an apocalyptic number.

30467947 is a deficient number, since it is larger than the sum of its proper divisors (1050773).

30467947 is a wasteful number, since it uses less digits than its factorization.

30467947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 30467947 is about 5519.7778034990. Note that the first 3 decimals coincide. The cubic root of 30467947 is about 312.3305005070.

The spelling of 30467947 in words is "thirty million, four hundred sixty-seven thousand, nine hundred forty-seven".