84880169 has 6 divisors (see below), whose sum is σ = 93298170. Its totient is φ = 77163680.

The previous prime is 84880157. The next prime is 84880177. The reversal of 84880169 is 96108848.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 74563225 + 10316944 = 8635^2 + 3212^2 .

It is not a de Polignac number, because 84880169 - 2¹² = 84876073 is a prime.

It is a super-2 number, since 2×84880169² = 14409286178937122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84880469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 350624 + ... + 350865.

It is an arithmetic number, because the mean of its divisors is an integer number (15549695).

Almost surely, 2^84880169 is an apocalyptic number.

It is an amenable number.

84880169 is a deficient number, since it is larger than the sum of its proper divisors (8418001).

84880169 is a wasteful number, since it uses less digits than its factorization.

84880169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701511 (or 701500 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 84880169 is about 9213.0434168086. The cubic root of 84880169 is about 439.4762518106.

The spelling of 84880169 in words is "eighty-four million, eight hundred eighty thousand, one hundred sixty-nine".