82547449 has 2 divisors, whose sum is σ = 82547450. Its totient is φ = 82547448.

The previous prime is 82547371. The next prime is 82547459. The reversal of 82547449 is 94474528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75429225 + 7118224 = 8685^2 + 2668^2 .

It is a cyclic number.

It is not a de Polignac number, because 82547449 - 2²⁵ = 48993017 is a prime.

It is not a weakly prime, because it can be changed into another prime (82547459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41273724 + 41273725.

It is an arithmetic number, because the mean of its divisors is an integer number (41273725).

Almost surely, 2^82547449 is an apocalyptic number.

It is an amenable number.

82547449 is a deficient number, since it is larger than the sum of its proper divisors (1).

82547449 is an equidigital number, since it uses as much as digits as its factorization.

82547449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 43.

The square root of 82547449 is about 9085.5626683216. The cubic root of 82547449 is about 435.4128269232.

The spelling of 82547449 in words is "eighty-two million, five hundred forty-seven thousand, four hundred forty-nine".