84097291 has 4 divisors (see below), whose sum is σ = 84147552. Its totient is φ = 84047032.

The previous prime is 84097289. The next prime is 84097297. The reversal of 84097291 is 19279048.

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 84097291 - 2¹ = 84097289 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84097297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22531 + ... + 25996.

It is an arithmetic number, because the mean of its divisors is an integer number (21036888).

Almost surely, 2^84097291 is an apocalyptic number.

84097291 is a deficient number, since it is larger than the sum of its proper divisors (50261).

84097291 is a wasteful number, since it uses less digits than its factorization.

84097291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50260.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 84097291 is about 9170.4575131233. The cubic root of 84097291 is about 438.1209312112.

The spelling of 84097291 in words is "eighty-four million, ninety-seven thousand, two hundred ninety-one".