9980169 has 16 divisors (see below), whose sum is σ = 13608000. Its totient is φ = 6504896.

The previous prime is 9980167. The next prime is 9980177. The reversal of 9980169 is 9610899.

It is a cyclic number.

It is not a de Polignac number, because 9980169 - 2¹ = 9980167 is a prime.

It is a super-2 number, since 2×9980169² = 199207546537122, which contains 22 as substring.

9980169 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9980169.

It is not an unprimeable number, because it can be changed into a prime (9980167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36967 + ... + 37235.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 2^9980169 is an apocalyptic number.

It is an amenable number.

9980169 is a deficient number, since it is larger than the sum of its proper divisors (3627831).

9980169 is a wasteful number, since it uses less digits than its factorization.

9980169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 9980169 is about 3159.1405476807. The cubic root of 9980169 is about 215.3009594436.

The spelling of 9980169 in words is "nine million, nine hundred eighty thousand, one hundred sixty-nine".