730828123 has 2 divisors, whose sum is σ = 730828124. Its totient is φ = 730828122.

The previous prime is 730828009. The next prime is 730828139. The reversal of 730828123 is 321828037.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 730828123 - 2⁹ = 730827611 is a prime.

It is not a weakly prime, because it can be changed into another prime (730828523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365414061 + 365414062.

It is an arithmetic number, because the mean of its divisors is an integer number (365414062).

Almost surely, 2^730828123 is an apocalyptic number.

730828123 is a deficient number, since it is larger than the sum of its proper divisors (1).

730828123 is an equidigital number, since it uses as much as digits as its factorization.

730828123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 730828123 is about 27033.8329320872. The cubic root of 730828123 is about 900.7516860038.

The spelling of 730828123 in words is "seven hundred thirty million, eight hundred twenty-eight thousand, one hundred twenty-three".