47830 has 8 divisors (see below), whose sum is σ = 86112. Its totient is φ = 19128.

The previous prime is 47819. The next prime is 47837. The reversal of 47830 is 3874.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47837) 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, 2382 + ... + 2401.

It is an arithmetic number, because the mean of its divisors is an integer number (10764).

2⁴⁷⁸³⁰ is an apocalyptic number.

47830 is a deficient number, since it is larger than the sum of its proper divisors (38282).

47830 is a wasteful number, since it uses less digits than its factorization.

47830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 47830 is about 218.7007087323. The cubic root of 47830 is about 36.2994568697.

Subtracting from 47830 its reverse (3874), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 47830 in words is "forty-seven thousand, eight hundred thirty".