244978663 has 2 divisors, whose sum is σ = 244978664. Its totient is φ = 244978662.

The previous prime is 244978661. The next prime is 244978717. The reversal of 244978663 is 366879442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 244978663 - 2¹ = 244978661 is a prime.

Together with 244978661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244978661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122489331 + 122489332.

It is an arithmetic number, because the mean of its divisors is an integer number (122489332).

Almost surely, 2^244978663 is an apocalyptic number.

244978663 is a deficient number, since it is larger than the sum of its proper divisors (1).

244978663 is an equidigital number, since it uses as much as digits as its factorization.

244978663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 49.

The square root of 244978663 is about 15651.7942421947. The cubic root of 244978663 is about 625.7143090691.

The spelling of 244978663 in words is "two hundred forty-four million, nine hundred seventy-eight thousand, six hundred sixty-three".