30002947 has 8 divisors (see below), whose sum is σ = 33353600. Its totient is φ = 26801280.

The previous prime is 30002933. The next prime is 30002963. The reversal of 30002947 is 74920003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30002947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30002047) 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, 36822 + ... + 37627.

It is an arithmetic number, because the mean of its divisors is an integer number (4169200).

Almost surely, 2^30002947 is an apocalyptic number.

30002947 is a deficient number, since it is larger than the sum of its proper divisors (3350653).

30002947 is a wasteful number, since it uses less digits than its factorization.

30002947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74493.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30002947 is about 5477.4945915081. The cubic root of 30002947 is about 310.7334247225.

The spelling of 30002947 in words is "thirty million, two thousand, nine hundred forty-seven".