1039728229 has 2 divisors, whose sum is σ = 1039728230. Its totient is φ = 1039728228.

The previous prime is 1039728187. The next prime is 1039728289. The reversal of 1039728229 is 9228279301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 567535329 + 472192900 = 23823^2 + 21730^2 .

It is an emirp because it is prime and its reverse (9228279301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1039728229 - 2¹⁷ = 1039597157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1039728289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519864114 + 519864115.

It is an arithmetic number, because the mean of its divisors is an integer number (519864115).

Almost surely, 2^1039728229 is an apocalyptic number.

It is an amenable number.

1039728229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1039728229 is an equidigital number, since it uses as much as digits as its factorization.

1039728229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1039728229 is about 32244.8170874018. The cubic root of 1039728229 is about 1013.0711437778.

The spelling of 1039728229 in words is "one billion, thirty-nine million, seven hundred twenty-eight thousand, two hundred twenty-nine".