84671071 has 2 divisors, whose sum is σ = 84671072. Its totient is φ = 84671070.

The previous prime is 84671003. The next prime is 84671089. The reversal of 84671071 is 17017648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84671071 - 2⁹ = 84670559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84674071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42335535 + 42335536.

It is an arithmetic number, because the mean of its divisors is an integer number (42335536).

Almost surely, 2^84671071 is an apocalyptic number.

84671071 is a deficient number, since it is larger than the sum of its proper divisors (1).

84671071 is an equidigital number, since it uses as much as digits as its factorization.

84671071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 84671071 is about 9201.6884863594. The cubic root of 84671071 is about 439.1150792374.

It can be divided in two parts, 846 and 71071, that added together give a palindrome (71917).

The spelling of 84671071 in words is "eighty-four million, six hundred seventy-one thousand, seventy-one".