244665397 has 2 divisors, whose sum is σ = 244665398. Its totient is φ = 244665396.

The previous prime is 244665383. The next prime is 244665401. The reversal of 244665397 is 793566442.

244665397 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 can be written as a sum of positive squares in only one way, i.e., 231313681 + 13351716 = 15209^2 + 3654^2 .

It is a cyclic number.

It is not a de Polignac number, because 244665397 - 2⁷ = 244665269 is a prime.

It is a super-2 number, since 2×244665397² = 119722312978335218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244665097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122332698 + 122332699.

It is an arithmetic number, because the mean of its divisors is an integer number (122332699).

Almost surely, 2^244665397 is an apocalyptic number.

It is an amenable number.

244665397 is a deficient number, since it is larger than the sum of its proper divisors (1).

244665397 is an equidigital number, since it uses as much as digits as its factorization.

244665397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 46.

The square root of 244665397 is about 15641.7836898482. The cubic root of 244665397 is about 625.4474849751.

The spelling of 244665397 in words is "two hundred forty-four million, six hundred sixty-five thousand, three hundred ninety-seven".