9992723 has 4 divisors (see below), whose sum is σ = 10761408. Its totient is φ = 9224040.

The previous prime is 9992713. The next prime is 9992737. The reversal of 9992723 is 3272999.

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-9992723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9992713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384323 + ... + 384348.

It is an arithmetic number, because the mean of its divisors is an integer number (2690352).

Almost surely, 2^9992723 is an apocalyptic number.

9992723 is a deficient number, since it is larger than the sum of its proper divisors (768685).

9992723 is a wasteful number, since it uses less digits than its factorization.

9992723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768684.

The product of its digits is 61236, while the sum is 41.

The square root of 9992723 is about 3161.1268560436. The cubic root of 9992723 is about 215.3911969175.

The spelling of 9992723 in words is "nine million, nine hundred ninety-two thousand, seven hundred twenty-three".