83855039 has 4 divisors (see below), whose sum is σ = 83886000. Its totient is φ = 83824080.

The previous prime is 83855029. The next prime is 83855041. The reversal of 83855039 is 93055838.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83855039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83854987 and 83855005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83855029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10982 + ... + 16979.

It is an arithmetic number, because the mean of its divisors is an integer number (20971500).

Almost surely, 2^83855039 is an apocalyptic number.

83855039 is a deficient number, since it is larger than the sum of its proper divisors (30961).

83855039 is a wasteful number, since it uses less digits than its factorization.

83855039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30960.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 83855039 is about 9157.2397041903. The cubic root of 83855039 is about 437.6998405672.

The spelling of 83855039 in words is "eighty-three million, eight hundred fifty-five thousand, thirty-nine".