1029397393 has 2 divisors, whose sum is σ = 1029397394. Its totient is φ = 1029397392.

The previous prime is 1029397331. The next prime is 1029397399. The reversal of 1029397393 is 3937939201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1016844544 + 12552849 = 31888^2 + 3543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1029397393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1029397399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514698696 + 514698697.

It is an arithmetic number, because the mean of its divisors is an integer number (514698697).

Almost surely, 2^1029397393 is an apocalyptic number.

It is an amenable number.

1029397393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1029397393 is an equidigital number, since it uses as much as digits as its factorization.

1029397393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 275562, while the sum is 46.

The square root of 1029397393 is about 32084.2234283456. The cubic root of 1029397393 is about 1009.7046461808.

The spelling of 1029397393 in words is "one billion, twenty-nine million, three hundred ninety-seven thousand, three hundred ninety-three".