82716973 has 2 divisors, whose sum is σ = 82716974. Its totient is φ = 82716972.

The previous prime is 82716929. The next prime is 82716979. The reversal of 82716973 is 37961728.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70862724 + 11854249 = 8418^2 + 3443^2 .

It is a cyclic number.

It is not a de Polignac number, because 82716973 - 2⁹ = 82716461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82716979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41358486 + 41358487.

It is an arithmetic number, because the mean of its divisors is an integer number (41358487).

Almost surely, 2^82716973 is an apocalyptic number.

It is an amenable number.

82716973 is a deficient number, since it is larger than the sum of its proper divisors (1).

82716973 is an equidigital number, since it uses as much as digits as its factorization.

82716973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 82716973 is about 9094.8871900645. The cubic root of 82716973 is about 435.7106857255.

The spelling of 82716973 in words is "eighty-two million, seven hundred sixteen thousand, nine hundred seventy-three".