4909147 has 2 divisors, whose sum is σ = 4909148. Its totient is φ = 4909146.

The previous prime is 4909117. The next prime is 4909159. The reversal of 4909147 is 7419094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4909147 - 2¹¹ = 4907099 is a prime.

It is not a weakly prime, because it can be changed into another prime (4909117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2454573 + 2454574.

It is an arithmetic number, because the mean of its divisors is an integer number (2454574).

Almost surely, 2^4909147 is an apocalyptic number.

4909147 is a deficient number, since it is larger than the sum of its proper divisors (1).

4909147 is an equidigital number, since it uses as much as digits as its factorization.

4909147 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 34.

The square root of 4909147 is about 2215.6594955002. The cubic root of 4909147 is about 169.9555477777.

The spelling of 4909147 in words is "four million, nine hundred nine thousand, one hundred forty-seven".