9974739 has 4 divisors (see below), whose sum is σ = 13299656. Its totient is φ = 6649824.

The previous prime is 9974711. The next prime is 9974747. The reversal of 9974739 is 9374799.

9974739 is digitally balanced in base 2, 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.

It is not a de Polignac number, because 9974739 - 2⁷ = 9974611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9974039) 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, 1662454 + ... + 1662459.

It is an arithmetic number, because the mean of its divisors is an integer number (3324914).

Almost surely, 2^9974739 is an apocalyptic number.

9974739 is a deficient number, since it is larger than the sum of its proper divisors (3324917).

9974739 is a wasteful number, since it uses less digits than its factorization.

9974739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324916.

The product of its digits is 428652, while the sum is 48.

The square root of 9974739 is about 3158.2810197954. The cubic root of 9974739 is about 215.2619054523.

The spelling of 9974739 in words is "nine million, nine hundred seventy-four thousand, seven hundred thirty-nine".