244865897 has 2 divisors, whose sum is σ = 244865898. Its totient is φ = 244865896.

The previous prime is 244865893. The next prime is 244865903. The reversal of 244865897 is 798568442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173817856 + 71048041 = 13184^2 + 8429^2 .

It is a cyclic number.

It is not a de Polignac number, because 244865897 - 2² = 244865893 is a prime.

It is a super-2 number, since 2×244865897² = 119918615027229218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (244865891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122432948 + 122432949.

It is an arithmetic number, because the mean of its divisors is an integer number (122432949).

Almost surely, 2^244865897 is an apocalyptic number.

It is an amenable number.

244865897 is a deficient number, since it is larger than the sum of its proper divisors (1).

244865897 is an equidigital number, since it uses as much as digits as its factorization.

244865897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 53.

The square root of 244865897 is about 15648.1914929490. The cubic root of 244865897 is about 625.6182869257.

The spelling of 244865897 in words is "two hundred forty-four million, eight hundred sixty-five thousand, eight hundred ninety-seven".