47730317 has 4 divisors (see below), whose sum is σ = 49376220. Its totient is φ = 46084416.

The previous prime is 47730311. The next prime is 47730329. The reversal of 47730317 is 71303774.

47730317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36312676 + 11417641 = 6026^2 + 3379^2 .

It is a cyclic number.

It is not a de Polignac number, because 47730317 - 2⁶ = 47730253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47730311) 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 3 ways as a sum of consecutive naturals, for example, 822908 + ... + 822965.

It is an arithmetic number, because the mean of its divisors is an integer number (12344055).

Almost surely, 2^47730317 is an apocalyptic number.

It is an amenable number.

47730317 is a deficient number, since it is larger than the sum of its proper divisors (1645903).

47730317 is a wasteful number, since it uses less digits than its factorization.

47730317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645902.

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 47730317 is about 6908.7131218484. The cubic root of 47730317 is about 362.7422197238.

The spelling of 47730317 in words is "forty-seven million, seven hundred thirty thousand, three hundred seventeen".