728026423 has 2 divisors, whose sum is σ = 728026424. Its totient is φ = 728026422.

The previous prime is 728026379. The next prime is 728026517. The reversal of 728026423 is 324620827.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728026423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728006423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364013211 + 364013212.

It is an arithmetic number, because the mean of its divisors is an integer number (364013212).

Almost surely, 2^728026423 is an apocalyptic number.

728026423 is a deficient number, since it is larger than the sum of its proper divisors (1).

728026423 is an equidigital number, since it uses as much as digits as its factorization.

728026423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 728026423 is about 26981.9647727885. The cubic root of 728026423 is about 899.5991725413.

The spelling of 728026423 in words is "seven hundred twenty-eight million, twenty-six thousand, four hundred twenty-three".