84917671 has 2 divisors, whose sum is σ = 84917672. Its totient is φ = 84917670.

The previous prime is 84917641. The next prime is 84917747. The reversal of 84917671 is 17671948.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84917671 - 2¹³ = 84909479 is a prime.

It is a super-2 number, since 2×84917671² = 14422021696128482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84917641) 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, 42458835 + 42458836.

It is an arithmetic number, because the mean of its divisors is an integer number (42458836).

Almost surely, 2^84917671 is an apocalyptic number.

84917671 is a deficient number, since it is larger than the sum of its proper divisors (1).

84917671 is an equidigital number, since it uses as much as digits as its factorization.

84917671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 43.

The square root of 84917671 is about 9215.0784587002. The cubic root of 84917671 is about 439.5409658340.

The spelling of 84917671 in words is "eighty-four million, nine hundred seventeen thousand, six hundred seventy-one".