9045947 has 2 divisors, whose sum is σ = 9045948. Its totient is φ = 9045946.

The previous prime is 9045937. The next prime is 9045977. The reversal of 9045947 is 7495409.

9045947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (7495409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9045947 - 2⁴ = 9045931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9045947.

It is not a weakly prime, because it can be changed into another prime (9045917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4522973 + 4522974.

It is an arithmetic number, because the mean of its divisors is an integer number (4522974).

Almost surely, 2^9045947 is an apocalyptic number.

9045947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9045947 is an equidigital number, since it uses as much as digits as its factorization.

9045947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 9045947 is about 3007.6480844673. The cubic root of 9045947 is about 208.3617579705.

The spelling of 9045947 in words is "nine million, forty-five thousand, nine hundred forty-seven".