83805039 has 12 divisors (see below), whose sum is σ = 121681456. Its totient is φ = 55579392.

The previous prime is 83805013. The next prime is 83805049. The reversal of 83805039 is 93050838.

It is not a de Polignac number, because 83805039 - 2¹¹ = 83802991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83804994 and 83805012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83805049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22387 + ... + 25860.

Almost surely, 2^83805039 is an apocalyptic number.

83805039 is a deficient number, since it is larger than the sum of its proper divisors (37876417).

83805039 is a wasteful number, since it uses less digits than its factorization.

83805039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48446 (or 48443 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 83805039 is about 9154.5092167740. The cubic root of 83805039 is about 437.6128279340.

The spelling of 83805039 in words is "eighty-three million, eight hundred five thousand, thirty-nine".