9980690 has 8 divisors (see below), whose sum is σ = 17965260. Its totient is φ = 3992272.

The previous prime is 9980629. The next prime is 9980693. The reversal of 9980690 is 960899.

It can be written as a sum of positive squares in 2 ways, for example, as 9554281 + 426409 = 3091^2 + 653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×9980690² = 199228345752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9980693) 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, 499025 + ... + 499044.

Almost surely, 2^9980690 is an apocalyptic number.

9980690 is a deficient number, since it is larger than the sum of its proper divisors (7984570).

9980690 is a wasteful number, since it uses less digits than its factorization.

9980690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998076.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 9980690 is about 3159.2230057405. The cubic root of 9980690 is about 215.3047058681.

The spelling of 9980690 in words is "nine million, nine hundred eighty thousand, six hundred ninety".