47723 has 4 divisors (see below), whose sum is σ = 51408. Its totient is φ = 44040.

The previous prime is 47717. The next prime is 47737. The reversal of 47723 is 32774.

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

It is a cyclic number.

It is not a de Polignac number, because 47723 - 2⁶ = 47659 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (47713) 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, 1823 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (12852).

2⁴⁷⁷²³ is an apocalyptic number.

47723 is a deficient number, since it is larger than the sum of its proper divisors (3685).

47723 is a wasteful number, since it uses less digits than its factorization.

47723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684.

The product of its digits is 1176, while the sum is 23.

The square root of 47723 is about 218.4559452155. The cubic root of 47723 is about 36.2723682795.

The spelling of 47723 in words is "forty-seven thousand, seven hundred twenty-three", and thus it is an iban number.