1293607993 has 2 divisors, whose sum is σ = 1293607994. Its totient is φ = 1293607992.

The previous prime is 1293607943. The next prime is 1293608011. The reversal of 1293607993 is 3997063921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1179716409 + 113891584 = 34347^2 + 10672^2 .

It is a cyclic number.

It is not a de Polignac number, because 1293607993 - 2⁹ = 1293607481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1293607943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646803996 + 646803997.

It is an arithmetic number, because the mean of its divisors is an integer number (646803997).

Almost surely, 2^1293607993 is an apocalyptic number.

It is an amenable number.

1293607993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293607993 is an equidigital number, since it uses as much as digits as its factorization.

1293607993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 49.

The square root of 1293607993 is about 35966.7623369132. The cubic root of 1293607993 is about 1089.6011763702.

The spelling of 1293607993 in words is "one billion, two hundred ninety-three million, six hundred seven thousand, nine hundred ninety-three".