9976723 has 4 divisors (see below), whose sum is σ = 10145880. Its totient is φ = 9807568.

The previous prime is 9976711. The next prime is 9976763. The reversal of 9976723 is 3276799.

9976723 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9976723 is a prime.

It is a Duffinian number.

9976723 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9976723.

It is not an unprimeable number, because it can be changed into a prime (9976763) 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, 84490 + ... + 84607.

It is an arithmetic number, because the mean of its divisors is an integer number (2536470).

Almost surely, 2^9976723 is an apocalyptic number.

9976723 is a deficient number, since it is larger than the sum of its proper divisors (169157).

9976723 is a wasteful number, since it uses less digits than its factorization.

9976723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169156.

The product of its digits is 142884, while the sum is 43.

The square root of 9976723 is about 3158.5950990907. The cubic root of 9976723 is about 215.2761765462.

The spelling of 9976723 in words is "nine million, nine hundred seventy-six thousand, seven hundred twenty-three".