9968739 has 16 divisors (see below), whose sum is σ = 14563584. Its totient is φ = 6015200.

The previous prime is 9968719. The next prime is 9968741. The reversal of 9968739 is 9378699.

9968739 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9968739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9968691 and 9968700.

It is not an unprimeable number, because it can be changed into a prime (9968719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9154 + ... + 10184.

It is an arithmetic number, because the mean of its divisors is an integer number (910224).

Almost surely, 2^9968739 is an apocalyptic number.

9968739 is a deficient number, since it is larger than the sum of its proper divisors (4594845).

9968739 is a wasteful number, since it uses less digits than its factorization.

9968739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338.

The product of its digits is 734832, while the sum is 51.

The square root of 9968739 is about 3157.3309931016. The cubic root of 9968739 is about 215.2187353842.

The spelling of 9968739 in words is "nine million, nine hundred sixty-eight thousand, seven hundred thirty-nine".