11724947 has 4 divisors (see below), whose sum is σ = 12626880. Its totient is φ = 10823016.

The previous prime is 11724941. The next prime is 11724971. The reversal of 11724947 is 74942711.

11724947 is digitally balanced in base 2 and base 3, because in such bases 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 not a de Polignac number, because 11724947 - 2⁴ = 11724931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11724941) 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, 450947 + ... + 450972.

It is an arithmetic number, because the mean of its divisors is an integer number (3156720).

Almost surely, 2^11724947 is an apocalyptic number.

11724947 is a deficient number, since it is larger than the sum of its proper divisors (901933).

11724947 is an equidigital number, since it uses as much as digits as its factorization.

11724947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901932.

The product of its digits is 14112, while the sum is 35.

The square root of 11724947 is about 3424.1709945620. The cubic root of 11724947 is about 227.1801050799.

The spelling of 11724947 in words is "eleven million, seven hundred twenty-four thousand, nine hundred forty-seven".