728533369 has 2 divisors, whose sum is σ = 728533370. Its totient is φ = 728533368.

The previous prime is 728533327. The next prime is 728533373. The reversal of 728533369 is 963335827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512796025 + 215737344 = 22645^2 + 14688^2 .

It is a cyclic number.

It is not a de Polignac number, because 728533369 - 2⁷ = 728533241 is a prime.

It is a super-2 number, since 2×728533369² = 1061521739492980322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (728533669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364266684 + 364266685.

It is an arithmetic number, because the mean of its divisors is an integer number (364266685).

Almost surely, 2^728533369 is an apocalyptic number.

It is an amenable number.

728533369 is a deficient number, since it is larger than the sum of its proper divisors (1).

728533369 is an equidigital number, since it uses as much as digits as its factorization.

728533369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 46.

The square root of 728533369 is about 26991.3573019217. The cubic root of 728533369 is about 899.8079297948.

The spelling of 728533369 in words is "seven hundred twenty-eight million, five hundred thirty-three thousand, three hundred sixty-nine".