730365731 has 2 divisors, whose sum is σ = 730365732. Its totient is φ = 730365730.

The previous prime is 730365641. The next prime is 730365737. The reversal of 730365731 is 137563037.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 730365731 - 2¹⁰ = 730364707 is a prime.

It is a super-2 number, since 2×730365731² = 1066868202038328722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 730365691 and 730365700.

It is not a weakly prime, because it can be changed into another prime (730365737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365182865 + 365182866.

It is an arithmetic number, because the mean of its divisors is an integer number (365182866).

Almost surely, 2^730365731 is an apocalyptic number.

730365731 is a deficient number, since it is larger than the sum of its proper divisors (1).

730365731 is an equidigital number, since it uses as much as digits as its factorization.

730365731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 35.

The square root of 730365731 is about 27025.2794805160. The cubic root of 730365731 is about 900.5616786087.

The spelling of 730365731 in words is "seven hundred thirty million, three hundred sixty-five thousand, seven hundred thirty-one".