730085761 has 2 divisors, whose sum is σ = 730085762. Its totient is φ = 730085760.

The previous prime is 730085753. The next prime is 730085767. The reversal of 730085761 is 167580037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421029361 + 309056400 = 20519^2 + 17580^2 .

It is an emirp because it is prime and its reverse (167580037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 730085761 - 2³ = 730085753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 730085761.

It is not a weakly prime, because it can be changed into another prime (730085767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365042880 + 365042881.

It is an arithmetic number, because the mean of its divisors is an integer number (365042881).

Almost surely, 2^730085761 is an apocalyptic number.

It is an amenable number.

730085761 is a deficient number, since it is larger than the sum of its proper divisors (1).

730085761 is an equidigital number, since it uses as much as digits as its factorization.

730085761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 730085761 is about 27020.0992041110. The cubic root of 730085761 is about 900.4465935832.

The spelling of 730085761 in words is "seven hundred thirty million, eighty-five thousand, seven hundred sixty-one".