84291 has 4 divisors (see below), whose sum is σ = 112392. Its totient is φ = 56192.

The previous prime is 84263. The next prime is 84299. The reversal of 84291 is 19248.

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 84291 - 2⁷ = 84163 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 84291.

It is not an unprimeable number, because it can be changed into a prime (84299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14046 + ... + 14051.

It is an arithmetic number, because the mean of its divisors is an integer number (28098).

2⁸⁴²⁹¹ is an apocalyptic number.

84291 is a deficient number, since it is larger than the sum of its proper divisors (28101).

84291 is a wasteful number, since it uses less digits than its factorization.

84291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28100.

The product of its digits is 576, while the sum is 24.

The square root of 84291 is about 290.3291235822. The cubic root of 84291 is about 43.8457061299.

The spelling of 84291 in words is "eighty-four thousand, two hundred ninety-one".