11723047 has 32 divisors (see below), whose sum is σ = 15206400. Its totient is φ = 8805888.

The previous prime is 11723011. The next prime is 11723071. The reversal of 11723047 is 74032711.

It is a happy number.

11723047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11723047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11723087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148354 + ... + 148432.

It is an arithmetic number, because the mean of its divisors is an integer number (475200).

Almost surely, 2^11723047 is an apocalyptic number.

11723047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11723047 is a deficient number, since it is larger than the sum of its proper divisors (3483353).

11723047 is a wasteful number, since it uses less digits than its factorization.

11723047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 11723047 is about 3423.8935439058. The cubic root of 11723047 is about 227.1678330837.

Adding to 11723047 its reverse (74032711), we get a palindrome (85755758).

The spelling of 11723047 in words is "eleven million, seven hundred twenty-three thousand, forty-seven".