64418449 has 2 divisors, whose sum is σ = 64418450. Its totient is φ = 64418448.

The previous prime is 64418437. The next prime is 64418461. The reversal of 64418449 is 94481446.

It is a balanced prime because it is at equal distance from previous prime (64418437) and next prime (64418461).

It can be written as a sum of positive squares in only one way, i.e., 53758224 + 10660225 = 7332^2 + 3265^2 .

It is a cyclic number.

It is not a de Polignac number, because 64418449 - 2⁹ = 64417937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64418149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32209224 + 32209225.

It is an arithmetic number, because the mean of its divisors is an integer number (32209225).

Almost surely, 2^64418449 is an apocalyptic number.

It is an amenable number.

64418449 is a deficient number, since it is larger than the sum of its proper divisors (1).

64418449 is an equidigital number, since it uses as much as digits as its factorization.

64418449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 40.

The square root of 64418449 is about 8026.1104527660. The cubic root of 64418449 is about 400.8698756695.

The spelling of 64418449 in words is "sixty-four million, four hundred eighteen thousand, four hundred forty-nine".