83995543 has 4 divisors (see below), whose sum is σ = 84013920. Its totient is φ = 83977168.

The previous prime is 83995537. The next prime is 83995547. The reversal of 83995543 is 34559938.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 83995543 - 2⁹ = 83995031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83995493 and 83995502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83995547) 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 3 ways as a sum of consecutive naturals, for example, 3618 + ... + 13456.

It is an arithmetic number, because the mean of its divisors is an integer number (21003480).

Almost surely, 2^83995543 is an apocalyptic number.

83995543 is a deficient number, since it is larger than the sum of its proper divisors (18377).

83995543 is an equidigital number, since it uses as much as digits as its factorization.

83995543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376.

The product of its digits is 583200, while the sum is 46.

The square root of 83995543 is about 9164.9082374021. The cubic root of 83995543 is about 437.9441680118.

The spelling of 83995543 in words is "eighty-three million, nine hundred ninety-five thousand, five hundred forty-three".