730744991 has 2 divisors, whose sum is σ = 730744992. Its totient is φ = 730744990.

The previous prime is 730744943. The next prime is 730745033. The reversal of 730744991 is 199447037.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 730744991 - 2¹⁰ = 730743967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730744691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365372495 + 365372496.

It is an arithmetic number, because the mean of its divisors is an integer number (365372496).

Almost surely, 2^730744991 is an apocalyptic number.

730744991 is a deficient number, since it is larger than the sum of its proper divisors (1).

730744991 is an equidigital number, since it uses as much as digits as its factorization.

730744991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 730744991 is about 27032.2953335450. The cubic root of 730744991 is about 900.7175310836.

The spelling of 730744991 in words is "seven hundred thirty million, seven hundred forty-four thousand, nine hundred ninety-one".