728042311 has 2 divisors, whose sum is σ = 728042312. Its totient is φ = 728042310.

The previous prime is 728042309. The next prime is 728042333. The reversal of 728042311 is 113240827.

728042311 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 is a cyclic number.

It is not a de Polignac number, because 728042311 - 2¹ = 728042309 is a prime.

Together with 728042309, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 728042311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728042351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364021155 + 364021156.

It is an arithmetic number, because the mean of its divisors is an integer number (364021156).

Almost surely, 2^728042311 is an apocalyptic number.

728042311 is a deficient number, since it is larger than the sum of its proper divisors (1).

728042311 is an equidigital number, since it uses as much as digits as its factorization.

728042311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 728042311 is about 26982.2591900678. The cubic root of 728042311 is about 899.6057165930.

The spelling of 728042311 in words is "seven hundred twenty-eight million, forty-two thousand, three hundred eleven".