9976739 has 8 divisors (see below), whose sum is σ = 10649088. Its totient is φ = 9313920.

The previous prime is 9976711. The next prime is 9976763. The reversal of 9976739 is 9376799.

It is a happy number.

9976739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9976739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9976789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152 + ... + 4469.

It is an arithmetic number, because the mean of its divisors is an integer number (1331136).

Almost surely, 2^9976739 is an apocalyptic number.

9976739 is a deficient number, since it is larger than the sum of its proper divisors (672349).

9976739 is a wasteful number, since it uses less digits than its factorization.

9976739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4765.

The product of its digits is 642978, while the sum is 50.

The square root of 9976739 is about 3158.5976318613. The cubic root of 9976739 is about 215.2762916279.

The spelling of 9976739 in words is "nine million, nine hundred seventy-six thousand, seven hundred thirty-nine".