82104219 has 16 divisors (see below), whose sum is σ = 122016640. Its totient is φ = 54564840.

The previous prime is 82104199. The next prime is 82104229. The reversal of 82104219 is 91240128.

It is not a de Polignac number, because 82104219 - 2¹¹ = 82102171 is a prime.

It is a super-2 number, since 2×82104219² = 13482205555199922, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82104192 and 82104201.

It is not an unprimeable number, because it can be changed into a prime (82104229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4344 + ... + 13530.

It is an arithmetic number, because the mean of its divisors is an integer number (7626040).

Almost surely, 2^82104219 is an apocalyptic number.

82104219 is a deficient number, since it is larger than the sum of its proper divisors (39912421).

82104219 is a wasteful number, since it uses less digits than its factorization.

82104219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9527 (or 9521 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 82104219 is about 9061.1378424567. The cubic root of 82104219 is about 434.6321265566.

The spelling of 82104219 in words is "eighty-two million, one hundred four thousand, two hundred nineteen".