868445297 has 2 divisors, whose sum is σ = 868445298. Its totient is φ = 868445296.

The previous prime is 868445287. The next prime is 868445311. The reversal of 868445297 is 792544868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 543869041 + 324576256 = 23321^2 + 18016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868445297 is a prime.

It is not a weakly prime, because it can be changed into another prime (868445267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434222648 + 434222649.

It is an arithmetic number, because the mean of its divisors is an integer number (434222649).

Almost surely, 2^868445297 is an apocalyptic number.

It is an amenable number.

868445297 is a deficient number, since it is larger than the sum of its proper divisors (1).

868445297 is an equidigital number, since it uses as much as digits as its factorization.

868445297 is an evil number, because the sum of its binary digits is even.

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

The square root of 868445297 is about 29469.3959388380. The cubic root of 868445297 is about 954.0712797264.

The spelling of 868445297 in words is "eight hundred sixty-eight million, four hundred forty-five thousand, two hundred ninety-seven".