11940947 has 2 divisors, whose sum is σ = 11940948. Its totient is φ = 11940946.

The previous prime is 11940913. The next prime is 11940967. The reversal of 11940947 is 74904911.

11940947 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 an emirp because it is prime and its reverse (74904911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11940947 - 2⁶ = 11940883 is a prime.

It is not a weakly prime, because it can be changed into another prime (11940967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5970473 + 5970474.

It is an arithmetic number, because the mean of its divisors is an integer number (5970474).

Almost surely, 2^11940947 is an apocalyptic number.

11940947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11940947 is an equidigital number, since it uses as much as digits as its factorization.

11940947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 11940947 is about 3455.5675365995. The cubic root of 11940947 is about 228.5666818397.

The spelling of 11940947 in words is "eleven million, nine hundred forty thousand, nine hundred forty-seven".