84731311 has 8 divisors (see below), whose sum is σ = 96994304. Its totient is φ = 72507960.

The previous prime is 84731299. The next prime is 84731327. The reversal of 84731311 is 11313748.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84731311 - 2¹⁵ = 84698543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84731311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84731341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5175 + ... + 14008.

It is an arithmetic number, because the mean of its divisors is an integer number (12124288).

Almost surely, 2^84731311 is an apocalyptic number.

84731311 is a deficient number, since it is larger than the sum of its proper divisors (12262993).

84731311 is a wasteful number, since it uses less digits than its factorization.

84731311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19821.

The product of its digits is 2016, while the sum is 28.

The square root of 84731311 is about 9204.9612166483. The cubic root of 84731311 is about 439.2191920168.

The spelling of 84731311 in words is "eighty-four million, seven hundred thirty-one thousand, three hundred eleven".