11723447 has 2 divisors, whose sum is σ = 11723448. Its totient is φ = 11723446.

The previous prime is 11723443. The next prime is 11723461. The reversal of 11723447 is 74432711.

It is a weak prime.

It is an emirp because it is prime and its reverse (74432711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11723447 - 2² = 11723443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11723443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861723 + 5861724.

It is an arithmetic number, because the mean of its divisors is an integer number (5861724).

Almost surely, 2^11723447 is an apocalyptic number.

11723447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11723447 is an equidigital number, since it uses as much as digits as its factorization.

11723447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 11723447 is about 3423.9519564386. The cubic root of 11723447 is about 227.1704167720.

The spelling of 11723447 in words is "eleven million, seven hundred twenty-three thousand, four hundred forty-seven".