47913 has 4 divisors (see below), whose sum is σ = 63888. Its totient is φ = 31940.

The previous prime is 47911. The next prime is 47917. The reversal of 47913 is 31974.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47913 - 2¹ = 47911 is a prime.

It is a D-number.

47913 is a lucky number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (47911) 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, 7983 + ... + 7988.

It is an arithmetic number, because the mean of its divisors is an integer number (15972).

2⁴⁷⁹¹³ is an apocalyptic number.

It is an amenable number.

47913 is a deficient number, since it is larger than the sum of its proper divisors (15975).

47913 is a wasteful number, since it uses less digits than its factorization.

47913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15974.

The product of its digits is 756, while the sum is 24.

The square root of 47913 is about 218.8903835256. The cubic root of 47913 is about 36.3204417038.

The spelling of 47913 in words is "forty-seven thousand, nine hundred thirteen".