83857273 has 4 divisors (see below), whose sum is σ = 83944960. Its totient is φ = 83769588.

The previous prime is 83857271. The next prime is 83857309. The reversal of 83857273 is 37275838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83857273 - 2¹ = 83857271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83857271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42393 + ... + 44326.

It is an arithmetic number, because the mean of its divisors is an integer number (20986240).

Almost surely, 2^83857273 is an apocalyptic number.

It is an amenable number.

83857273 is a deficient number, since it is larger than the sum of its proper divisors (87687).

83857273 is an equidigital number, since it uses as much as digits as its factorization.

83857273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87686.

The product of its digits is 282240, while the sum is 43.

The square root of 83857273 is about 9157.3616833671. The cubic root of 83857273 is about 437.7037274843.

The spelling of 83857273 in words is "eighty-three million, eight hundred fifty-seven thousand, two hundred seventy-three".