530305947 has 36 divisors (see below), whose sum is σ = 802789416. Its totient is φ = 350269920.

The previous prime is 530305943. The next prime is 530305981. The reversal of 530305947 is 749503035.

530305947 is a `hidden beast` number, since 5 + 30 + 30 + 594 + 7 = 666.

It is not a de Polignac number, because 530305947 - 2² = 530305943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (530305943) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 859183 + ... + 859799.

It is an arithmetic number, because the mean of its divisors is an integer number (22299706).

Almost surely, 2^530305947 is an apocalyptic number.

530305947 is a deficient number, since it is larger than the sum of its proper divisors (272483469).

530305947 is an frugal number, since it uses more digits than its factorization.

530305947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 530305947 is about 23028.3726520134. The cubic root of 530305947 is about 809.4229222968.

The spelling of 530305947 in words is "five hundred thirty million, three hundred five thousand, nine hundred forty-seven".