82347 has 4 divisors (see below), whose sum is σ = 109800. Its totient is φ = 54896.

The previous prime is 82339. The next prime is 82349. The reversal of 82347 is 74328.

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 82347 - 2³ = 82339 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (82349) 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, 13722 + ... + 13727.

It is an arithmetic number, because the mean of its divisors is an integer number (27450).

2⁸²³⁴⁷ is an apocalyptic number.

82347 is a deficient number, since it is larger than the sum of its proper divisors (27453).

82347 is a wasteful number, since it uses less digits than its factorization.

82347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27452.

The product of its digits is 1344, while the sum is 24.

The square root of 82347 is about 286.9616699143. The cubic root of 82347 is about 43.5060105316.

Subtracting from 82347 its product of digits (1344), we obtain a triangular number (81003 = T₄₀₂).

The spelling of 82347 in words is "eighty-two thousand, three hundred forty-seven".