82806523 has 2 divisors, whose sum is σ = 82806524. Its totient is φ = 82806522.

The previous prime is 82806517. The next prime is 82806547. The reversal of 82806523 is 32560828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82806523 - 2¹⁷ = 82675451 is a prime.

It is not a weakly prime, because it can be changed into another prime (82804523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41403261 + 41403262.

It is an arithmetic number, because the mean of its divisors is an integer number (41403262).

Almost surely, 2^82806523 is an apocalyptic number.

82806523 is a deficient number, since it is larger than the sum of its proper divisors (1).

82806523 is an equidigital number, since it uses as much as digits as its factorization.

82806523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 82806523 is about 9099.8089540385. The cubic root of 82806523 is about 435.8678635436.

The spelling of 82806523 in words is "eighty-two million, eight hundred six thousand, five hundred twenty-three".