728527 has 2 divisors, whose sum is σ = 728528. Its totient is φ = 728526.

The previous prime is 728521. The next prime is 728537. The reversal of 728527 is 725827.

It is a weak prime.

It is an emirp because it is prime and its reverse (725827) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364263 + 364264.

It is an arithmetic number, because the mean of its divisors is an integer number (364264).

2⁷²⁸⁵²⁷ is an apocalyptic number.

728527 is a deficient number, since it is larger than the sum of its proper divisors (1).

728527 is an equidigital number, since it uses as much as digits as its factorization.

728527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7840, while the sum is 31.

The square root of 728527 is about 853.5379312017. The cubic root of 728527 is about 89.9805307680.

The spelling of 728527 in words is "seven hundred twenty-eight thousand, five hundred twenty-seven".