30740947 has 8 divisors (see below), whose sum is σ = 33102000. Its totient is φ = 28441344.

The previous prime is 30740929. The next prime is 30740971. The reversal of 30740947 is 74904703.

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

It is a cyclic number.

It is not a de Polignac number, because 30740947 - 2⁷ = 30740819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30740987) 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 7 ways as a sum of consecutive naturals, for example, 14322 + ... + 16327.

It is an arithmetic number, because the mean of its divisors is an integer number (4137750).

Almost surely, 2^30740947 is an apocalyptic number.

30740947 is a deficient number, since it is larger than the sum of its proper divisors (2361053).

30740947 is a wasteful number, since it uses less digits than its factorization.

30740947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30725.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 30740947 is about 5544.4519115960. The cubic root of 30740947 is about 313.2605797837.

The spelling of 30740947 in words is "thirty million, seven hundred forty thousand, nine hundred forty-seven".