9980667 has 24 divisors (see below), whose sum is σ = 15095808. Its totient is φ = 6346800.

The previous prime is 9980629. The next prime is 9980693. The reversal of 9980667 is 7660899.

It is not a de Polignac number, because 9980667 - 2⁶ = 9980603 is a prime.

It is a super-2 number, since 2×9980667² = 199227427529778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9980167) 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 23 ways as a sum of consecutive naturals, for example, 22942 + ... + 23372.

It is an arithmetic number, because the mean of its divisors is an integer number (628992).

Almost surely, 2^9980667 is an apocalyptic number.

9980667 is a deficient number, since it is larger than the sum of its proper divisors (5115141).

9980667 is a wasteful number, since it uses less digits than its factorization.

9980667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9980667 is about 3159.2193656028. The cubic root of 9980667 is about 215.3045404816.

The spelling of 9980667 in words is "nine million, nine hundred eighty thousand, six hundred sixty-seven".