83436121 has 8 divisors (see below), whose sum is σ = 84427200. Its totient is φ = 82449360.

The previous prime is 83436109. The next prime is 83436137. The reversal of 83436121 is 12163438.

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 83436121 - 2⁷ = 83435993 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83436121.

It is not an unprimeable number, because it can be changed into a prime (83436181) 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 7 ways as a sum of consecutive naturals, for example, 52740 + ... + 54298.

It is an arithmetic number, because the mean of its divisors is an integer number (10553400).

Almost surely, 2^83436121 is an apocalyptic number.

It is an amenable number.

83436121 is a deficient number, since it is larger than the sum of its proper divisors (991079).

83436121 is a wasteful number, since it uses less digits than its factorization.

83436121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159.

The product of its digits is 3456, while the sum is 28.

The square root of 83436121 is about 9134.3374691326. The cubic root of 83436121 is about 436.9697451768.

Adding to 83436121 its reverse (12163438), we get a palindrome (95599559).

The spelling of 83436121 in words is "eighty-three million, four hundred thirty-six thousand, one hundred twenty-one".