83616655 has 4 divisors (see below), whose sum is σ = 100339992. Its totient is φ = 66893320.

The previous prime is 83616653. The next prime is 83616667. The reversal of 83616655 is 55661638.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 83616655 - 2¹ = 83616653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83616653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8361661 + ... + 8361670.

It is an arithmetic number, because the mean of its divisors is an integer number (25084998).

Almost surely, 2^83616655 is an apocalyptic number.

83616655 is a deficient number, since it is larger than the sum of its proper divisors (16723337).

83616655 is a wasteful number, since it uses less digits than its factorization.

83616655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16723336.

The product of its digits is 129600, while the sum is 40.

The square root of 83616655 is about 9144.2142910148. The cubic root of 83616655 is about 437.2846809852.

The spelling of 83616655 in words is "eighty-three million, six hundred sixteen thousand, six hundred fifty-five".