47991713 has 8 divisors (see below), whose sum is σ = 59833920. Its totient is φ = 37396080.

The previous prime is 47991707. The next prime is 47991763. The reversal of 47991713 is 31719974.

47991713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 47991713 - 2¹⁴ = 47975329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47991703) 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, 311558 + ... + 311711.

It is an arithmetic number, because the mean of its divisors is an integer number (7479240).

Almost surely, 2^47991713 is an apocalyptic number.

It is an amenable number.

47991713 is a deficient number, since it is larger than the sum of its proper divisors (11842207).

47991713 is a wasteful number, since it uses less digits than its factorization.

47991713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623287.

The product of its digits is 47628, while the sum is 41.

The square root of 47991713 is about 6927.6051417499. The cubic root of 47991713 is about 363.4032028094.

The spelling of 47991713 in words is "forty-seven million, nine hundred ninety-one thousand, seven hundred thirteen".