82163047 has 2 divisors, whose sum is σ = 82163048. Its totient is φ = 82163046.

The previous prime is 82163027. The next prime is 82163071. The reversal of 82163047 is 74036128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82163047 - 2¹⁹ = 81638759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82163027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41081523 + 41081524.

It is an arithmetic number, because the mean of its divisors is an integer number (41081524).

Almost surely, 2^82163047 is an apocalyptic number.

82163047 is a deficient number, since it is larger than the sum of its proper divisors (1).

82163047 is an equidigital number, since it uses as much as digits as its factorization.

82163047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 82163047 is about 9064.3834318722. The cubic root of 82163047 is about 434.7359069909.

The spelling of 82163047 in words is "eighty-two million, one hundred sixty-three thousand, forty-seven".