728495 has 8 divisors (see below), whose sum is σ = 878784. Its totient is φ = 579744.

The previous prime is 728489. The next prime is 728521. The reversal of 728495 is 594827.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 728495 - 2¹⁰ = 727471 is a prime.

It is a d-powerful number, because it can be written as 7⁶ + 2⁹ + 4⁴ + 8³ + 9⁶ + 5⁷ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1637 + ... + 2033.

It is an arithmetic number, because the mean of its divisors is an integer number (109848).

2⁷²⁸⁴⁹⁵ is an apocalyptic number.

728495 is a deficient number, since it is larger than the sum of its proper divisors (150289).

728495 is a wasteful number, since it uses less digits than its factorization.

728495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769.

The product of its digits is 20160, while the sum is 35.

The square root of 728495 is about 853.5191854903. The cubic root of 728495 is about 89.9792133064.

The spelling of 728495 in words is "seven hundred twenty-eight thousand, four hundred ninety-five".