9980931 has 4 divisors (see below), whose sum is σ = 13307912. Its totient is φ = 6653952.

The previous prime is 9980911. The next prime is 9980941. The reversal of 9980931 is 1390899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1390899 = 3 ⋅463633.

It is not a de Polignac number, because 9980931 - 2⁵ = 9980899 is a prime.

It is a super-2 number, since 2×9980931² = 199237967253522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9980931.

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 3 ways as a sum of consecutive naturals, for example, 1663486 + ... + 1663491.

It is an arithmetic number, because the mean of its divisors is an integer number (3326978).

Almost surely, 2^9980931 is an apocalyptic number.

9980931 is a deficient number, since it is larger than the sum of its proper divisors (3326981).

9980931 is a wasteful number, since it uses less digits than its factorization.

9980931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326980.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 9980931 is about 3159.2611478002. The cubic root of 9980931 is about 215.3064388149.

The spelling of 9980931 in words is "nine million, nine hundred eighty thousand, nine hundred thirty-one".