730149709 has 2 divisors, whose sum is σ = 730149710. Its totient is φ = 730149708.

The previous prime is 730149649. The next prime is 730149731. The reversal of 730149709 is 907941037.

730149709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369985225 + 360164484 = 19235^2 + 18978^2 .

It is an emirp because it is prime and its reverse (907941037) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730149709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730149769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365074854 + 365074855.

It is an arithmetic number, because the mean of its divisors is an integer number (365074855).

Almost surely, 2^730149709 is an apocalyptic number.

It is an amenable number.

730149709 is a deficient number, since it is larger than the sum of its proper divisors (1).

730149709 is an equidigital number, since it uses as much as digits as its factorization.

730149709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 730149709 is about 27021.2825195252. The cubic root of 730149709 is about 900.4728827676.

The spelling of 730149709 in words is "seven hundred thirty million, one hundred forty-nine thousand, seven hundred nine".