82540973 has 2 divisors, whose sum is σ = 82540974. Its totient is φ = 82540972.

The previous prime is 82540961. The next prime is 82541029. The reversal of 82540973 is 37904528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74684164 + 7856809 = 8642^2 + 2803^2 .

It is a cyclic number.

It is not a de Polignac number, because 82540973 - 2¹² = 82536877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82540273) 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, 41270486 + 41270487.

It is an arithmetic number, because the mean of its divisors is an integer number (41270487).

Almost surely, 2^82540973 is an apocalyptic number.

It is an amenable number.

82540973 is a deficient number, since it is larger than the sum of its proper divisors (1).

82540973 is an equidigital number, since it uses as much as digits as its factorization.

82540973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 82540973 is about 9085.2062717365. The cubic root of 82540973 is about 435.4014403116.

The spelling of 82540973 in words is "eighty-two million, five hundred forty thousand, nine hundred seventy-three".