83616018 has 16 divisors (see below), whose sum is σ = 168856896. Its totient is φ = 27601200.

The previous prime is 83616007. The next prime is 83616023. The reversal of 83616018 is 81061638.

It is a self number, because there is not a number n which added to its sum of digits gives 83616018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67033 + ... + 68268.

It is an arithmetic number, because the mean of its divisors is an integer number (10553556).

Almost surely, 2^83616018 is an apocalyptic number.

83616018 is an abundant number, since it is smaller than the sum of its proper divisors (85240878).

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

83616018 is a wasteful number, since it uses less digits than its factorization.

83616018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135409.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 83616018 is about 9144.1794601812. The cubic root of 83616018 is about 437.2835705563.

The spelling of 83616018 in words is "eighty-three million, six hundred sixteen thousand, eighteen".