730008749 has 2 divisors, whose sum is σ = 730008750. Its totient is φ = 730008748.

The previous prime is 730008647. The next prime is 730008767. The reversal of 730008749 is 947800037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 629106724 + 100902025 = 25082^2 + 10045^2 .

It is a cyclic number.

It is not a de Polignac number, because 730008749 - 2⁸ = 730008493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730008049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365004374 + 365004375.

It is an arithmetic number, because the mean of its divisors is an integer number (365004375).

Almost surely, 2^730008749 is an apocalyptic number.

It is an amenable number.

730008749 is a deficient number, since it is larger than the sum of its proper divisors (1).

730008749 is an equidigital number, since it uses as much as digits as its factorization.

730008749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 730008749 is about 27018.6740792364. The cubic root of 730008749 is about 900.4149317177.

The spelling of 730008749 in words is "seven hundred thirty million, eight thousand, seven hundred forty-nine".