9974 has 4 divisors (see below), whose sum is σ = 14964. Its totient is φ = 4986.

The previous prime is 9973. The next prime is 10007. The reversal of 9974 is 4799.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a plaindrome in base 8.

It is a nialpdrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 9974.

It is not an unprimeable number, because it can be changed into a prime (9973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2492 + ... + 2495.

It is an arithmetic number, because the mean of its divisors is an integer number (3741).

2⁹⁹⁷⁴ is an apocalyptic number.

9974 is a deficient number, since it is larger than the sum of its proper divisors (4990).

9974 is a wasteful number, since it uses less digits than its factorization.

9974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989.

The product of its digits is 2268, while the sum is 29.

The square root of 9974 is about 99.8699153900. The cubic root of 9974 is about 21.5256589274.

It can be divided in two parts, 997 and 4, that added together give a palindrome (1001).

The spelling of 9974 in words is "nine thousand, nine hundred seventy-four".