30947347 has 6 divisors (see below), whose sum is σ = 31306988. Its totient is φ = 30591792.

The previous prime is 30947339. The next prime is 30947353. The reversal of 30947347 is 74374903.

It is not a de Polignac number, because 30947347 - 2³ = 30947339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30947317) 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 5 ways as a sum of consecutive naturals, for example, 5968 + ... + 9874.

Almost surely, 2^30947347 is an apocalyptic number.

30947347 is a deficient number, since it is larger than the sum of its proper divisors (359641).

30947347 is an frugal number, since it uses more digits than its factorization.

30947347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085 (or 3996 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 30947347 is about 5563.0339743705. The cubic root of 30947347 is about 313.9601116383.

The spelling of 30947347 in words is "thirty million, nine hundred forty-seven thousand, three hundred forty-seven".