83218104 has 80 divisors (see below), whose sum is σ = 234788400. Its totient is φ = 27537408.

The previous prime is 83218103. The next prime is 83218123. The reversal of 83218104 is 40181238.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83218103) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 107832 + ... + 108600.

It is an arithmetic number, because the mean of its divisors is an integer number (2934855).

Almost surely, 2^83218104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83218104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117394200).

83218104 is an abundant number, since it is smaller than the sum of its proper divisors (151570296).

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

83218104 is a wasteful number, since it uses less digits than its factorization.

83218104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 83218104 is about 9122.3957379627. The cubic root of 83218104 is about 436.5888153139.

The spelling of 83218104 in words is "eighty-three million, two hundred eighteen thousand, one hundred four".