730945961 has 2 divisors, whose sum is σ = 730945962. Its totient is φ = 730945960.

The previous prime is 730945951. The next prime is 730946009. The reversal of 730945961 is 169549037.

730945961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419635225 + 311310736 = 20485^2 + 17644^2 .

It is a cyclic number.

It is not a de Polignac number, because 730945961 - 2²² = 726751657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (730945921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365472980 + 365472981.

It is an arithmetic number, because the mean of its divisors is an integer number (365472981).

Almost surely, 2^730945961 is an apocalyptic number.

It is an amenable number.

730945961 is a deficient number, since it is larger than the sum of its proper divisors (1).

730945961 is an equidigital number, since it uses as much as digits as its factorization.

730945961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 730945961 is about 27036.0122984141. The cubic root of 730945961 is about 900.8000955042.

The spelling of 730945961 in words is "seven hundred thirty million, nine hundred forty-five thousand, nine hundred sixty-one".