11720723 has 8 divisors (see below), whose sum is σ = 13615200. Its totient is φ = 9881280.

The previous prime is 11720707. The next prime is 11720767. The reversal of 11720723 is 32702711.

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

It is a cyclic number.

It is not a de Polignac number, because 11720723 - 2⁴ = 11720707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11720773) 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 7 ways as a sum of consecutive naturals, for example, 13298 + ... + 14151.

It is an arithmetic number, because the mean of its divisors is an integer number (1701900).

Almost surely, 2^11720723 is an apocalyptic number.

11720723 is a deficient number, since it is larger than the sum of its proper divisors (1894477).

11720723 is an equidigital number, since it uses as much as digits as its factorization.

11720723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27517.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 11720723 is about 3423.5541473737. The cubic root of 11720723 is about 227.1528206916.

The spelling of 11720723 in words is "eleven million, seven hundred twenty thousand, seven hundred twenty-three".