8193939 has 8 divisors (see below), whose sum is σ = 11765712. Its totient is φ = 5042400.

The previous prime is 8193929. The next prime is 8193961. The reversal of 8193939 is 9393918.

It is a happy number.

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

It is not a de Polignac number, because 8193939 - 2⁵ = 8193907 is a prime.

8193939 is a modest number, since divided by 3939 gives 819 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 8193939.

It is not an unprimeable number, because it can be changed into a prime (8193929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105012 + ... + 105089.

It is an arithmetic number, because the mean of its divisors is an integer number (1470714).

Almost surely, 2^8193939 is an apocalyptic number.

8193939 is a deficient number, since it is larger than the sum of its proper divisors (3571773).

8193939 is a wasteful number, since it uses less digits than its factorization.

8193939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210117.

The product of its digits is 52488, while the sum is 42.

The square root of 8193939 is about 2862.5057205183. The cubic root of 8193939 is about 201.6032715912.

The spelling of 8193939 in words is "eight million, one hundred ninety-three thousand, nine hundred thirty-nine".