4318649 has 2 divisors, whose sum is σ = 4318650. Its totient is φ = 4318648.

The previous prime is 4318637. The next prime is 4318661. The reversal of 4318649 is 9468134.

It is a balanced prime because it is at equal distance from previous prime (4318637) and next prime (4318661).

It can be written as a sum of positive squares in only one way, i.e., 4276624 + 42025 = 2068^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 4318649 - 2²⁰ = 3270073 is a prime.

It is not a weakly prime, because it can be changed into another prime (4318669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2159324 + 2159325.

It is an arithmetic number, because the mean of its divisors is an integer number (2159325).

Almost surely, 2^4318649 is an apocalyptic number.

It is an amenable number.

4318649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4318649 is an equidigital number, since it uses as much as digits as its factorization.

4318649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 4318649 is about 2078.1359435802. The cubic root of 4318649 is about 162.8480775487.

The spelling of 4318649 in words is "four million, three hundred eighteen thousand, six hundred forty-nine".