11972747 has 2 divisors, whose sum is σ = 11972748. Its totient is φ = 11972746.

The previous prime is 11972729. The next prime is 11972761. The reversal of 11972747 is 74727911.

11972747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11972747 - 2⁶ = 11972683 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11972747.

It is not a weakly prime, because it can be changed into another prime (11972767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5986373 + 5986374.

It is an arithmetic number, because the mean of its divisors is an integer number (5986374).

Almost surely, 2^11972747 is an apocalyptic number.

11972747 is a deficient number, since it is larger than the sum of its proper divisors (1).

11972747 is an equidigital number, since it uses as much as digits as its factorization.

11972747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24696, while the sum is 38.

The square root of 11972747 is about 3460.1657474751. The cubic root of 11972747 is about 228.7694010439.

The spelling of 11972747 in words is "eleven million, nine hundred seventy-two thousand, seven hundred forty-seven".