82197503 has 2 divisors, whose sum is σ = 82197504. Its totient is φ = 82197502.

The previous prime is 82197491. The next prime is 82197517. The reversal of 82197503 is 30579128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82197503 - 2²⁰ = 81148927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82197593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41098751 + 41098752.

It is an arithmetic number, because the mean of its divisors is an integer number (41098752).

Almost surely, 2^82197503 is an apocalyptic number.

82197503 is a deficient number, since it is larger than the sum of its proper divisors (1).

82197503 is an equidigital number, since it uses as much as digits as its factorization.

82197503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 82197503 is about 9066.2838583402. The cubic root of 82197503 is about 434.7966689657.

The spelling of 82197503 in words is "eighty-two million, one hundred ninety-seven thousand, five hundred three".