82012279 has 2 divisors, whose sum is σ = 82012280. Its totient is φ = 82012278.

The previous prime is 82012241. The next prime is 82012283. The reversal of 82012279 is 97221028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82012279 - 2¹⁷ = 81881207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82012279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82012219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41006139 + 41006140.

It is an arithmetic number, because the mean of its divisors is an integer number (41006140).

Almost surely, 2^82012279 is an apocalyptic number.

82012279 is a deficient number, since it is larger than the sum of its proper divisors (1).

82012279 is an equidigital number, since it uses as much as digits as its factorization.

82012279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 82012279 is about 9056.0631071123. The cubic root of 82012279 is about 434.4698328149.

The spelling of 82012279 in words is "eighty-two million, twelve thousand, two hundred seventy-nine".