728087 has 2 divisors, whose sum is σ = 728088. Its totient is φ = 728086.

The previous prime is 728069. The next prime is 728113. The reversal of 728087 is 780827.

It is a happy number.

728087 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 728087 - 2¹⁰ = 727063 is a prime.

It is a super-2 number, since 2×728087² = 1060221359138, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 728087.

It is not a weakly prime, because it can be changed into another prime (728017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364043 + 364044.

It is an arithmetic number, because the mean of its divisors is an integer number (364044).

2⁷²⁸⁰⁸⁷ is an apocalyptic number.

728087 is a deficient number, since it is larger than the sum of its proper divisors (1).

728087 is an equidigital number, since it uses as much as digits as its factorization.

728087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 728087 is about 853.2801415713. The cubic root of 728087 is about 89.9624122875.

The spelling of 728087 in words is "seven hundred twenty-eight thousand, eighty-seven".