82744873 has 2 divisors, whose sum is σ = 82744874. Its totient is φ = 82744872.

The previous prime is 82744841. The next prime is 82744897. The reversal of 82744873 is 37844728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55995289 + 26749584 = 7483^2 + 5172^2 .

It is a cyclic number.

It is not a de Polignac number, because 82744873 - 2⁵ = 82744841 is a prime.

It is a super-2 number, since 2×82744873² = 13693428015572258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82744973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41372436 + 41372437.

It is an arithmetic number, because the mean of its divisors is an integer number (41372437).

Almost surely, 2^82744873 is an apocalyptic number.

It is an amenable number.

82744873 is a deficient number, since it is larger than the sum of its proper divisors (1).

82744873 is an equidigital number, since it uses as much as digits as its factorization.

82744873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 43.

The square root of 82744873 is about 9096.4208895587. The cubic root of 82744873 is about 435.7596678598.

The spelling of 82744873 in words is "eighty-two million, seven hundred forty-four thousand, eight hundred seventy-three".