83841993 has 8 divisors (see below), whose sum is σ = 124210400. Its totient is φ = 55894644.

The previous prime is 83841973. The next prime is 83841997. The reversal of 83841993 is 39914838.

It is not a de Polignac number, because 83841993 - 2¹⁰ = 83840969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83841997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1552603 + ... + 1552656.

It is an arithmetic number, because the mean of its divisors is an integer number (15526300).

Almost surely, 2^83841993 is an apocalyptic number.

It is an amenable number.

83841993 is a deficient number, since it is larger than the sum of its proper divisors (40368407).

83841993 is a wasteful number, since it uses less digits than its factorization.

83841993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105268 (or 3105262 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 83841993 is about 9156.5273439225. The cubic root of 83841993 is about 437.6771405667.

The spelling of 83841993 in words is "eighty-three million, eight hundred forty-one thousand, nine hundred ninety-three".