244688947 has 2 divisors, whose sum is σ = 244688948. Its totient is φ = 244688946.

The previous prime is 244688923. The next prime is 244688953. The reversal of 244688947 is 749886442.

244688947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 244688947 - 2⁷ = 244688819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 244688894 and 244688903.

It is not a weakly prime, because it can be changed into another prime (244688047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122344473 + 122344474.

It is an arithmetic number, because the mean of its divisors is an integer number (122344474).

Almost surely, 2^244688947 is an apocalyptic number.

244688947 is a deficient number, since it is larger than the sum of its proper divisors (1).

244688947 is an equidigital number, since it uses as much as digits as its factorization.

244688947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 52.

The square root of 244688947 is about 15642.5364631188. The cubic root of 244688947 is about 625.4675515856.

The spelling of 244688947 in words is "two hundred forty-four million, six hundred eighty-eight thousand, nine hundred forty-seven".