440949647 has 2 divisors, whose sum is σ = 440949648. Its totient is φ = 440949646.

The previous prime is 440949637. The next prime is 440949659. The reversal of 440949647 is 746949044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440949647 - 2¹⁰ = 440948623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440949637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220474823 + 220474824.

It is an arithmetic number, because the mean of its divisors is an integer number (220474824).

Almost surely, 2^440949647 is an apocalyptic number.

440949647 is a deficient number, since it is larger than the sum of its proper divisors (1).

440949647 is an equidigital number, since it uses as much as digits as its factorization.

440949647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 440949647 is about 20998.8010848239. The cubic root of 440949647 is about 761.1372902301.

The spelling of 440949647 in words is "four hundred forty million, nine hundred forty-nine thousand, six hundred forty-seven".