9946 has 4 divisors (see below), whose sum is σ = 14922. Its totient is φ = 4972.

The previous prime is 9941. The next prime is 9949. The reversal of 9946 is 6499.

9946 is nontrivially palindromic in base 8.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6499 = 67 ⋅97.

It can be written as a sum of positive squares in only one way, i.e., 7921 + 2025 = 89^2 + 45^2 .

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (9941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2485 + ... + 2488.

2⁹⁹⁴⁶ is an apocalyptic number.

9946 is a deficient number, since it is larger than the sum of its proper divisors (4976).

9946 is a wasteful number, since it uses less digits than its factorization.

9946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975.

The product of its digits is 1944, while the sum is 28.

The square root of 9946 is about 99.7296345125. The cubic root of 9946 is about 21.5054970620.

It can be divided in two parts, 994 and 6, that added together give a cube (1000 = 10³).

The spelling of 9946 in words is "nine thousand, nine hundred forty-six".