728055 has 16 divisors (see below), whose sum is σ = 1294560. Its totient is φ = 388224.

The previous prime is 728047. The next prime is 728069. The reversal of 728055 is 550827.

It is a happy number.

It is not a de Polignac number, because 728055 - 2³ = 728047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2562 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (80910).

2⁷²⁸⁰⁵⁵ is an apocalyptic number.

728055 is a deficient number, since it is larger than the sum of its proper divisors (566505).

728055 is a wasteful number, since it uses less digits than its factorization.

728055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407 (or 5401 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 728055 is about 853.2613901965. The cubic root of 728055 is about 89.9610942952.

The spelling of 728055 in words is "seven hundred twenty-eight thousand, fifty-five".