1297959799 has 2 divisors, whose sum is σ = 1297959800. Its totient is φ = 1297959798.

The previous prime is 1297959743. The next prime is 1297959823. The reversal of 1297959799 is 9979597921.

It is a strong prime.

It is an emirp because it is prime and its reverse (9979597921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1297959799 - 2¹¹ = 1297957751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297909799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648979899 + 648979900.

It is an arithmetic number, because the mean of its divisors is an integer number (648979900).

Almost surely, 2^1297959799 is an apocalyptic number.

1297959799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297959799 is an equidigital number, since it uses as much as digits as its factorization.

1297959799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28934010, while the sum is 67.

The square root of 1297959799 is about 36027.2091480869. The cubic root of 1297959799 is about 1090.8216454463.

The spelling of 1297959799 in words is "one billion, two hundred ninety-seven million, nine hundred fifty-nine thousand, seven hundred ninety-nine".