82116474 has 32 divisors (see below), whose sum is σ = 180472320. Its totient is φ = 24702000.

The previous prime is 82116449. The next prime is 82116491. The reversal of 82116474 is 47461128.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4699 + ... + 13649.

It is an arithmetic number, because the mean of its divisors is an integer number (5639760).

Almost surely, 2^82116474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82116474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90236160).

82116474 is an abundant number, since it is smaller than the sum of its proper divisors (98355846).

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

82116474 is a wasteful number, since it uses less digits than its factorization.

82116474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9106.

The product of its digits is 10752, while the sum is 33.

The square root of 82116474 is about 9061.8140567990. The cubic root of 82116474 is about 434.6537500971.

The spelling of 82116474 in words is "eighty-two million, one hundred sixteen thousand, four hundred seventy-four".