82748279 has 2 divisors, whose sum is σ = 82748280. Its totient is φ = 82748278.

The previous prime is 82748251. The next prime is 82748311. The reversal of 82748279 is 97284728.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82748279 - 2⁸ = 82748023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82748219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41374139 + 41374140.

It is an arithmetic number, because the mean of its divisors is an integer number (41374140).

Almost surely, 2^82748279 is an apocalyptic number.

82748279 is a deficient number, since it is larger than the sum of its proper divisors (1).

82748279 is an equidigital number, since it uses as much as digits as its factorization.

82748279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 82748279 is about 9096.6081041232. The cubic root of 82748279 is about 435.7656467884.

The spelling of 82748279 in words is "eighty-two million, seven hundred forty-eight thousand, two hundred seventy-nine".