83850073 has 4 divisors (see below), whose sum is σ = 83868388. Its totient is φ = 83831760.

The previous prime is 83850061. The next prime is 83850079. The reversal of 83850073 is 37005838.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 60886809 + 22963264 = 7803^2 + 4792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83850073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83850079) 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, 4543 + ... + 13723.

It is an arithmetic number, because the mean of its divisors is an integer number (20967097).

Almost surely, 2^83850073 is an apocalyptic number.

It is an amenable number.

83850073 is a deficient number, since it is larger than the sum of its proper divisors (18315).

83850073 is an equidigital number, since it uses as much as digits as its factorization.

83850073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18314.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 83850073 is about 9156.9685485973. The cubic root of 83850073 is about 437.6912000198.

The spelling of 83850073 in words is "eighty-three million, eight hundred fifty thousand, seventy-three".