83235643 has 8 divisors (see below), whose sum is σ = 88079616. Its totient is φ = 78493800.

The previous prime is 83235629. The next prime is 83235653. The reversal of 83235643 is 34653238.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83235643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83235599 and 83235608.

It is not an unprimeable number, because it can be changed into a prime (83235623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23853 + ... + 27118.

It is an arithmetic number, because the mean of its divisors is an integer number (11009952).

Almost surely, 2^83235643 is an apocalyptic number.

83235643 is a deficient number, since it is larger than the sum of its proper divisors (4843973).

83235643 is a wasteful number, since it uses less digits than its factorization.

83235643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51065.

The product of its digits is 51840, while the sum is 34.

The square root of 83235643 is about 9123.3570027704. The cubic root of 83235643 is about 436.6194848957.

The spelling of 83235643 in words is "eighty-three million, two hundred thirty-five thousand, six hundred forty-three".