729800569 has 2 divisors, whose sum is σ = 729800570. Its totient is φ = 729800568.

The previous prime is 729800483. The next prime is 729800581. The reversal of 729800569 is 965008927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 716258169 + 13542400 = 26763^2 + 3680^2 .

It is a cyclic number.

It is not a de Polignac number, because 729800569 - 2¹³ = 729792377 is a prime.

It is a super-2 number, since 2×729800569² = 1065217741025447522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (729800069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364900284 + 364900285.

It is an arithmetic number, because the mean of its divisors is an integer number (364900285).

Almost surely, 2^729800569 is an apocalyptic number.

It is an amenable number.

729800569 is a deficient number, since it is larger than the sum of its proper divisors (1).

729800569 is an equidigital number, since it uses as much as digits as its factorization.

729800569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 729800569 is about 27014.8212838804. The cubic root of 729800569 is about 900.3293317382.

The spelling of 729800569 in words is "seven hundred twenty-nine million, eight hundred thousand, five hundred sixty-nine".