9950981 has 4 divisors (see below), whose sum is σ = 10162752. Its totient is φ = 9739212.

The previous prime is 9950977. The next prime is 9950989. The reversal of 9950981 is 1890599.

9950981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9950981 - 2² = 9950977 is a prime.

It is a super-2 number, since 2×9950981² = 198044045724722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9950989) 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 3 ways as a sum of consecutive naturals, for example, 105815 + ... + 105908.

It is an arithmetic number, because the mean of its divisors is an integer number (2540688).

Almost surely, 2^9950981 is an apocalyptic number.

It is an amenable number.

9950981 is a deficient number, since it is larger than the sum of its proper divisors (211771).

9950981 is a wasteful number, since it uses less digits than its factorization.

9950981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211770.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 9950981 is about 3154.5175542387. The cubic root of 9950981 is about 215.0908647836.

The spelling of 9950981 in words is "nine million, nine hundred fifty thousand, nine hundred eighty-one".