83543953 has 8 divisors (see below), whose sum is σ = 86519016. Its totient is φ = 80620800.

The previous prime is 83543909. The next prime is 83543959. The reversal of 83543953 is 35934538.

It can be written as a sum of positive squares in 4 ways, for example, as 588289 + 82955664 = 767^2 + 9108^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 83543953 - 2⁹ = 83543441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83543959) 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, 9688 + ... + 16153.

It is an arithmetic number, because the mean of its divisors is an integer number (10814877).

Almost surely, 2^83543953 is an apocalyptic number.

It is an amenable number.

83543953 is a deficient number, since it is larger than the sum of its proper divisors (2975063).

83543953 is a wasteful number, since it uses less digits than its factorization.

83543953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25955.

The product of its digits is 194400, while the sum is 40.

The square root of 83543953 is about 9140.2381260009. The cubic root of 83543953 is about 437.1579092346.

The spelling of 83543953 in words is "eighty-three million, five hundred forty-three thousand, nine hundred fifty-three".