83504121 has 8 divisors (see below), whose sum is σ = 111720000. Its totient is φ = 55478832.

The previous prime is 83504117. The next prime is 83504147. The reversal of 83504121 is 12140538.

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

It is not a de Polignac number, because 83504121 - 2² = 83504117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83504091 and 83504100.

It is not an unprimeable number, because it can be changed into a prime (83504321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46621 + ... + 48378.

It is an arithmetic number, because the mean of its divisors is an integer number (13965000).

Almost surely, 2^83504121 is an apocalyptic number.

It is an amenable number.

83504121 is a deficient number, since it is larger than the sum of its proper divisors (28215879).

83504121 is a wasteful number, since it uses less digits than its factorization.

83504121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95295.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 83504121 is about 9138.0589295539. The cubic root of 83504121 is about 437.0884222906.

Adding to 83504121 its reverse (12140538), we get a palindrome (95644659).

The spelling of 83504121 in words is "eighty-three million, five hundred four thousand, one hundred twenty-one".