84047 has 2 divisors, whose sum is σ = 84048. Its totient is φ = 84046.

The previous prime is 84017. The next prime is 84053. The reversal of 84047 is 74048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84047 - 2⁶ = 83983 is a prime.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 84047.

It is not a weakly prime, because it can be changed into another prime (84017) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42023 + 42024.

It is an arithmetic number, because the mean of its divisors is an integer number (42024).

2⁸⁴⁰⁴⁷ is an apocalyptic number.

84047 is a deficient number, since it is larger than the sum of its proper divisors (1).

84047 is an equidigital number, since it uses as much as digits as its factorization.

84047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 84047 is about 289.9086062883. The cubic root of 84047 is about 43.8033580267.

Subtracting from 84047 its reverse (74048), we obtain a palindrome (9999).

The spelling of 84047 in words is "eighty-four thousand, forty-seven".