444649 has 2 divisors, whose sum is σ = 444650. Its totient is φ = 444648.

The previous prime is 444641. The next prime is 444671. The reversal of 444649 is 946444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225625 + 219024 = 475^2 + 468^2 .

It is a cyclic number.

It is not a de Polignac number, because 444649 - 2³ = 444641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444649.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222324 + 222325.

It is an arithmetic number, because the mean of its divisors is an integer number (222325).

2⁴⁴⁴⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

444649 is a deficient number, since it is larger than the sum of its proper divisors (1).

444649 is an equidigital number, since it uses as much as digits as its factorization.

444649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 31.

The square root of 444649 is about 666.8200656849. The cubic root of 444649 is about 76.3259889241.

The spelling of 444649 in words is "four hundred forty-four thousand, six hundred forty-nine".