82917198 has 96 divisors (see below), whose sum is σ = 223082496. Its totient is φ = 21674304.

The previous prime is 82917193. The next prime is 82917203. The reversal of 82917198 is 89171928.

It is an interprime number because it is at equal distance from previous prime (82917193) and next prime (82917203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82917193) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 365161 + ... + 365387.

It is an arithmetic number, because the mean of its divisors is an integer number (2323776).

Almost surely, 2^82917198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82917198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111541248).

82917198 is an abundant number, since it is smaller than the sum of its proper divisors (140165298).

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

82917198 is a wasteful number, since it uses less digits than its factorization.

82917198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 475 counting only the distinct ones).

The product of its digits is 72576, while the sum is 45.

The square root of 82917198 is about 9105.8880950734. Note that the first 3 decimals coincide. The cubic root of 82917198 is about 436.0619633900.

The spelling of 82917198 in words is "eighty-two million, nine hundred seventeen thousand, one hundred ninety-eight".