730270609 has 2 divisors, whose sum is σ = 730270610. Its totient is φ = 730270608.

The previous prime is 730270601. The next prime is 730270621. The reversal of 730270609 is 906072037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482900625 + 247369984 = 21975^2 + 15728^2 .

It is a cyclic number.

It is not a de Polignac number, because 730270609 - 2³ = 730270601 is a prime.

It is not a weakly prime, because it can be changed into another prime (730270601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365135304 + 365135305.

It is an arithmetic number, because the mean of its divisors is an integer number (365135305).

Almost surely, 2^730270609 is an apocalyptic number.

It is an amenable number.

730270609 is a deficient number, since it is larger than the sum of its proper divisors (1).

730270609 is an equidigital number, since it uses as much as digits as its factorization.

730270609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 730270609 is about 27023.5195524195. The cubic root of 730270609 is about 900.5225808692.

The spelling of 730270609 in words is "seven hundred thirty million, two hundred seventy thousand, six hundred nine".