82486997 has 2 divisors, whose sum is σ = 82486998. Its totient is φ = 82486996.

The previous prime is 82486973. The next prime is 82487011. The reversal of 82486997 is 79968428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46977316 + 35509681 = 6854^2 + 5959^2 .

It is a cyclic number.

It is not a de Polignac number, because 82486997 - 2¹⁶ = 82421461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82489997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41243498 + 41243499.

It is an arithmetic number, because the mean of its divisors is an integer number (41243499).

Almost surely, 2^82486997 is an apocalyptic number.

It is an amenable number.

82486997 is a deficient number, since it is larger than the sum of its proper divisors (1).

82486997 is an equidigital number, since it uses as much as digits as its factorization.

82486997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 82486997 is about 9082.2352424940. The cubic root of 82486997 is about 435.3065122944.

Subtracting from 82486997 its reverse (79968428), we obtain a square (2518569 = 1587²).

The spelling of 82486997 in words is "eighty-two million, four hundred eighty-six thousand, nine hundred ninety-seven".