730328429 has 2 divisors, whose sum is σ = 730328430. Its totient is φ = 730328428.

The previous prime is 730328387. The next prime is 730328503. The reversal of 730328429 is 924823037.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391842025 + 338486404 = 19795^2 + 18398^2 .

It is an emirp because it is prime and its reverse (924823037) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730328429 is a prime.

It is a super-2 number, since 2×730328429² = 1066759228411216082, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 730328392 and 730328401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730322429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365164214 + 365164215.

It is an arithmetic number, because the mean of its divisors is an integer number (365164215).

Almost surely, 2^730328429 is an apocalyptic number.

It is an amenable number.

730328429 is a deficient number, since it is larger than the sum of its proper divisors (1).

730328429 is an equidigital number, since it uses as much as digits as its factorization.

730328429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 730328429 is about 27024.5893400806. The cubic root of 730328429 is about 900.5463468727.

The spelling of 730328429 in words is "seven hundred thirty million, three hundred twenty-eight thousand, four hundred twenty-nine".