83199939 has 16 divisors (see below), whose sum is σ = 117611520. Its totient is φ = 52224480.

The previous prime is 83199937. The next prime is 83199973. The reversal of 83199939 is 93999138.

It is not a de Polignac number, because 83199939 - 2¹ = 83199937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83199891 and 83199900.

It is not an unprimeable number, because it can be changed into a prime (83199931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8649 + ... + 15530.

It is an arithmetic number, because the mean of its divisors is an integer number (7350720).

Almost surely, 2^83199939 is an apocalyptic number.

83199939 is a deficient number, since it is larger than the sum of its proper divisors (34411581).

83199939 is a wasteful number, since it uses less digits than its factorization.

83199939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24250.

The product of its digits is 472392, while the sum is 51.

The square root of 83199939 is about 9121.4000570088. The cubic root of 83199939 is about 436.5570465338.

The spelling of 83199939 in words is "eighty-three million, one hundred ninety-nine thousand, nine hundred thirty-nine".