730020017 has 2 divisors, whose sum is σ = 730020018. Its totient is φ = 730020016.

The previous prime is 730019993. The next prime is 730020029. The reversal of 730020017 is 710020037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476286976 + 253733041 = 21824^2 + 15929^2 .

It is an emirp because it is prime and its reverse (710020037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 730020017 - 2²⁶ = 662911153 is a prime.

It is not a weakly prime, because it can be changed into another prime (730020217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365010008 + 365010009.

It is an arithmetic number, because the mean of its divisors is an integer number (365010009).

Almost surely, 2^730020017 is an apocalyptic number.

It is an amenable number.

730020017 is a deficient number, since it is larger than the sum of its proper divisors (1).

730020017 is an equidigital number, since it uses as much as digits as its factorization.

730020017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 730020017 is about 27018.8826008775. The cubic root of 730020017 is about 900.4195644582.

Adding to 730020017 its sum of digits (20), we get a palindrome (730020037).

The spelling of 730020017 in words is "seven hundred thirty million, twenty thousand, seventeen".