9980919 has 24 divisors (see below), whose sum is σ = 16205280. Its totient is φ = 5873472.

The previous prime is 9980911. The next prime is 9980941. The reversal of 9980919 is 9190899.

It is not a de Polignac number, because 9980919 - 2³ = 9980911 is a prime.

It is a super-2 number, since 2×9980919² = 199237488169122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 837 + ... + 4545.

It is an arithmetic number, because the mean of its divisors is an integer number (675220).

Almost surely, 2^9980919 is an apocalyptic number.

9980919 is a deficient number, since it is larger than the sum of its proper divisors (6224361).

9980919 is a wasteful number, since it uses less digits than its factorization.

9980919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751 (or 3748 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The square root of 9980919 is about 3159.2592486214. The cubic root of 9980919 is about 215.3063525278.

It can be divided in two parts, 99 and 80919, that added together give a palindrome (81018).

The spelling of 9980919 in words is "nine million, nine hundred eighty thousand, nine hundred nineteen".