47927317 has 4 divisors (see below), whose sum is σ = 48831660. Its totient is φ = 47022976.

The previous prime is 47927309. The next prime is 47927389. The reversal of 47927317 is 71372974.

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 33074001 + 14853316 = 5751^2 + 3854^2 .

It is a cyclic number.

It is not a de Polignac number, because 47927317 - 2³ = 47927309 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47927317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47927017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452092 + ... + 452197.

It is an arithmetic number, because the mean of its divisors is an integer number (12207915).

Almost surely, 2^47927317 is an apocalyptic number.

It is an amenable number.

47927317 is a deficient number, since it is larger than the sum of its proper divisors (904343).

47927317 is an equidigital number, since it uses as much as digits as its factorization.

47927317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904342.

The product of its digits is 74088, while the sum is 40.

The square root of 47927317 is about 6922.9557993678. The cubic root of 47927317 is about 363.2405901004.

The spelling of 47927317 in words is "forty-seven million, nine hundred twenty-seven thousand, three hundred seventeen".