83218674 has 128 divisors (see below), whose sum is σ = 218972160. Its totient is φ = 20462400.

The previous prime is 83218657. The next prime is 83218693. The reversal of 83218674 is 47681238.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1172059 + ... + 1172129.

It is an arithmetic number, because the mean of its divisors is an integer number (1710720).

Almost surely, 2^83218674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83218674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109486080).

83218674 is an abundant number, since it is smaller than the sum of its proper divisors (135753486).

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

83218674 is a wasteful number, since it uses less digits than its factorization.

83218674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its digits is 64512, while the sum is 39.

The square root of 83218674 is about 9122.4269797023. The cubic root of 83218674 is about 436.5898121124.

The spelling of 83218674 in words is "eighty-three million, two hundred eighteen thousand, six hundred seventy-four".