82706773 has 2 divisors, whose sum is σ = 82706774. Its totient is φ = 82706772.

The previous prime is 82706749. The next prime is 82706783. The reversal of 82706773 is 37760728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64915249 + 17791524 = 8057^2 + 4218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82706773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82706783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41353386 + 41353387.

It is an arithmetic number, because the mean of its divisors is an integer number (41353387).

Almost surely, 2^82706773 is an apocalyptic number.

It is an amenable number.

82706773 is a deficient number, since it is larger than the sum of its proper divisors (1).

82706773 is an equidigital number, since it uses as much as digits as its factorization.

82706773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 82706773 is about 9094.3264181576. The cubic root of 82706773 is about 435.6927755291.

The spelling of 82706773 in words is "eighty-two million, seven hundred six thousand, seven hundred seventy-three".