980988869 has 12 divisors (see below), whose sum is σ = 1154903904. Its totient is φ = 830713464.

The previous prime is 980988851. The next prime is 980988901. The reversal of 980988869 is 968889089.

It is not a de Polignac number, because 980988869 - 2¹² = 980984773 is a prime.

It is a super-2 number, since 2×980988869² = 1924678322203798322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980988809) 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 in 11 ways as a sum of consecutive naturals, for example, 116537 + ... + 124670.

It is an arithmetic number, because the mean of its divisors is an integer number (96241992).

Almost surely, 2^980988869 is an apocalyptic number.

It is an amenable number.

980988869 is a deficient number, since it is larger than the sum of its proper divisors (173915035).

980988869 is a wasteful number, since it uses less digits than its factorization.

980988869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241304 (or 241297 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 65.

The square root of 980988869 is about 31320.7418334879. The cubic root of 980988869 is about 993.6223686196.

The spelling of 980988869 in words is "nine hundred eighty million, nine hundred eighty-eight thousand, eight hundred sixty-nine".