650449 has 2 divisors, whose sum is σ = 650450. Its totient is φ = 650448.

The previous prime is 650413. The next prime is 650477. The reversal of 650449 is 944056.

It is an a-pointer prime, because the next prime (650477) can be obtained adding 650449 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 540225 + 110224 = 735^2 + 332^2 .

It is a cyclic number.

It is not a de Polignac number, because 650449 - 2⁹ = 649937 is a prime.

It is not a weakly prime, because it can be changed into another prime (650479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325224 + 325225.

It is an arithmetic number, because the mean of its divisors is an integer number (325225).

2⁶⁵⁰⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

650449 is a deficient number, since it is larger than the sum of its proper divisors (1).

650449 is an equidigital number, since it uses as much as digits as its factorization.

650449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 650449 is about 806.5041847381. The cubic root of 650449 is about 86.6438516539.

The spelling of 650449 in words is "six hundred fifty thousand, four hundred forty-nine".