83681616 has 40 divisors (see below), whose sum is σ = 228896064. Its totient is φ = 26252800.

The previous prime is 83681581. The next prime is 83681623. The reversal of 83681616 is 61618638.

It is a super-2 number, since 2×83681616² = 14005225712742912, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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, 50460 + ... + 52091.

Almost surely, 2^83681616 is an apocalyptic number.

It is an amenable number.

83681616 is an abundant number, since it is smaller than the sum of its proper divisors (145214448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83681616 is a wasteful number, since it uses less digits than its factorization.

83681616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102579 (or 102573 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 83681616 is about 9147.7656288298. The cubic root of 83681616 is about 437.3978924704.

The spelling of 83681616 in words is "eighty-three million, six hundred eighty-one thousand, six hundred sixteen".