297768949 has 2 divisors, whose sum is σ = 297768950. Its totient is φ = 297768948.

The previous prime is 297768883. The next prime is 297768967. The reversal of 297768949 is 949867792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270832849 + 26936100 = 16457^2 + 5190^2 .

It is a cyclic number.

It is not a de Polignac number, because 297768949 - 2²¹ = 295671797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (297768979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148884474 + 148884475.

It is an arithmetic number, because the mean of its divisors is an integer number (148884475).

Almost surely, 2^297768949 is an apocalyptic number.

It is an amenable number.

297768949 is a deficient number, since it is larger than the sum of its proper divisors (1).

297768949 is an equidigital number, since it uses as much as digits as its factorization.

297768949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 61.

The square root of 297768949 is about 17255.9829914149. The cubic root of 297768949 is about 667.7693313847.

The spelling of 297768949 in words is "two hundred ninety-seven million, seven hundred sixty-eight thousand, nine hundred forty-nine".