84791 has 4 divisors (see below), whose sum is σ = 96912. Its totient is φ = 72672.

The previous prime is 84787. The next prime is 84793. The reversal of 84791 is 19748.

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 84791 - 2² = 84787 is a prime.

It is a Duffinian number.

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 84791.

It is not an unprimeable number, because it can be changed into a prime (84793) 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, 6050 + ... + 6063.

It is an arithmetic number, because the mean of its divisors is an integer number (24228).

2⁸⁴⁷⁹¹ is an apocalyptic number.

84791 is a deficient number, since it is larger than the sum of its proper divisors (12121).

84791 is a wasteful number, since it uses less digits than its factorization.

84791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12120.

The product of its digits is 2016, while the sum is 29.

The square root of 84791 is about 291.1889420977. The cubic root of 84791 is about 43.9322303843.

It can be divided in two parts, 847 and 91, that multiplied together give a palindrome (77077).

The spelling of 84791 in words is "eighty-four thousand, seven hundred ninety-one".