244399997 has 2 divisors, whose sum is σ = 244399998. Its totient is φ = 244399996.

The previous prime is 244399979. The next prime is 244400011. The reversal of 244399997 is 799993442.

Together with previous prime (244399979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204318436 + 40081561 = 14294^2 + 6331^2 .

It is a cyclic number.

It is not a de Polignac number, because 244399997 - 2⁶ = 244399933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244399957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122199998 + 122199999.

It is an arithmetic number, because the mean of its divisors is an integer number (122199999).

Almost surely, 2^244399997 is an apocalyptic number.

It is an amenable number.

244399997 is a deficient number, since it is larger than the sum of its proper divisors (1).

244399997 is an equidigital number, since it uses as much as digits as its factorization.

244399997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 56.

The square root of 244399997 is about 15633.2977007412. The cubic root of 244399997 is about 625.2212524399.

The spelling of 244399997 in words is "two hundred forty-four million, three hundred ninety-nine thousand, nine hundred ninety-seven".