728522743 has 16 divisors (see below), whose sum is σ = 833414400. Its totient is φ = 630867456.

The previous prime is 728522657. The next prime is 728522759. The reversal of 728522743 is 347225827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728522743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 728522696 and 728522705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728522243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64858 + ... + 75256.

It is an arithmetic number, because the mean of its divisors is an integer number (52088400).

Almost surely, 2^728522743 is an apocalyptic number.

728522743 is a deficient number, since it is larger than the sum of its proper divisors (104891657).

728522743 is a wasteful number, since it uses less digits than its factorization.

728522743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10746.

The product of its digits is 188160, while the sum is 40.

The square root of 728522743 is about 26991.1604604174. The cubic root of 728522743 is about 899.8035550670.

The spelling of 728522743 in words is "seven hundred twenty-eight million, five hundred twenty-two thousand, seven hundred forty-three".