82057847 has 2 divisors, whose sum is σ = 82057848. Its totient is φ = 82057846.

The previous prime is 82057819. The next prime is 82057883. The reversal of 82057847 is 74875028.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82057847 - 2¹⁰ = 82056823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87057847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41028923 + 41028924.

It is an arithmetic number, because the mean of its divisors is an integer number (41028924).

Almost surely, 2^82057847 is an apocalyptic number.

82057847 is a deficient number, since it is larger than the sum of its proper divisors (1).

82057847 is an equidigital number, since it uses as much as digits as its factorization.

82057847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 82057847 is about 9058.5786412660. The cubic root of 82057847 is about 434.5502852219.

The spelling of 82057847 in words is "eighty-two million, fifty-seven thousand, eight hundred forty-seven".