9789974 has 4 divisors (see below), whose sum is σ = 14684964. Its totient is φ = 4894986.

The previous prime is 9789971. The next prime is 9789991. The reversal of 9789974 is 4799879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4799879 = 7 ⋅685697.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9789971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2447492 + ... + 2447495.

It is an arithmetic number, because the mean of its divisors is an integer number (3671241).

Almost surely, 2^9789974 is an apocalyptic number.

9789974 is a deficient number, since it is larger than the sum of its proper divisors (4894990).

9789974 is a wasteful number, since it uses less digits than its factorization.

9789974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4894989.

The product of its digits is 1143072, while the sum is 53.

The square root of 9789974 is about 3128.8934146116. The cubic root of 9789974 is about 213.9244936986.

The spelling of 9789974 in words is "nine million, seven hundred eighty-nine thousand, nine hundred seventy-four".