4518947 has 2 divisors, whose sum is σ = 4518948. Its totient is φ = 4518946.

The previous prime is 4518929. The next prime is 4518953. The reversal of 4518947 is 7498154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4518947 - 2⁶ = 4518883 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 4518947.

It is not a weakly prime, because it can be changed into another prime (4518907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2259473 + 2259474.

It is an arithmetic number, because the mean of its divisors is an integer number (2259474).

Almost surely, 2^4518947 is an apocalyptic number.

4518947 is a deficient number, since it is larger than the sum of its proper divisors (1).

4518947 is an equidigital number, since it uses as much as digits as its factorization.

4518947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 4518947 is about 2125.7815033535. The cubic root of 4518947 is about 165.3277476904.

The spelling of 4518947 in words is "four million, five hundred eighteen thousand, nine hundred forty-seven".