1029397399 has 2 divisors, whose sum is σ = 1029397400. Its totient is φ = 1029397398.

The previous prime is 1029397393. The next prime is 1029397433. The reversal of 1029397399 is 9937939201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1029397399 - 2²⁹ = 492526487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1029397393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514698699 + 514698700.

It is an arithmetic number, because the mean of its divisors is an integer number (514698700).

Almost surely, 2^1029397399 is an apocalyptic number.

1029397399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1029397399 is an equidigital number, since it uses as much as digits as its factorization.

1029397399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 826686, while the sum is 52.

The square root of 1029397399 is about 32084.2235218495. The cubic root of 1029397399 is about 1009.7046481425.

The spelling of 1029397399 in words is "one billion, twenty-nine million, three hundred ninety-seven thousand, three hundred ninety-nine".