82204471 has 2 divisors, whose sum is σ = 82204472. Its totient is φ = 82204470.

The previous prime is 82204427. The next prime is 82204481. The reversal of 82204471 is 17440228.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82204471 - 2²¹ = 80107319 is a prime.

It is a super-3 number, since 3×82204471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82204411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41102235 + 41102236.

It is an arithmetic number, because the mean of its divisors is an integer number (41102236).

Almost surely, 2^82204471 is an apocalyptic number.

82204471 is a deficient number, since it is larger than the sum of its proper divisors (1).

82204471 is an equidigital number, since it uses as much as digits as its factorization.

82204471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 82204471 is about 9066.6681311273. The cubic root of 82204471 is about 434.8089547306.

Adding to 82204471 its reverse (17440228), we get a palindrome (99644699).

The spelling of 82204471 in words is "eighty-two million, two hundred four thousand, four hundred seventy-one".