730347481 has 2 divisors, whose sum is σ = 730347482. Its totient is φ = 730347480.

The previous prime is 730347467. The next prime is 730347511. The reversal of 730347481 is 184743037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 725763600 + 4583881 = 26940^2 + 2141^2 .

It is an emirp because it is prime and its reverse (184743037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 730347481 - 2¹³ = 730339289 is a prime.

It is a super-2 number, since 2×730347481² = 1066814886006090722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 730347481.

It is not a weakly prime, because it can be changed into another prime (730377481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365173740 + 365173741.

It is an arithmetic number, because the mean of its divisors is an integer number (365173741).

Almost surely, 2^730347481 is an apocalyptic number.

It is an amenable number.

730347481 is a deficient number, since it is larger than the sum of its proper divisors (1).

730347481 is an equidigital number, since it uses as much as digits as its factorization.

730347481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 730347481 is about 27024.9418315748. The cubic root of 730347481 is about 900.5541776235.

The spelling of 730347481 in words is "seven hundred thirty million, three hundred forty-seven thousand, four hundred eighty-one".