728038 has 8 divisors (see below), whose sum is σ = 1096488. Its totient is φ = 362544.

The previous prime is 728027. The next prime is 728047. The reversal of 728038 is 830827.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 727997 and 728015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (137061).

2⁷²⁸⁰³⁸ is an apocalyptic number.

728038 is a deficient number, since it is larger than the sum of its proper divisors (368450).

728038 is a wasteful number, since it uses less digits than its factorization.

728038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 728038 is about 853.2514283609. The cubic root of 728038 is about 89.9603940960.

The spelling of 728038 in words is "seven hundred twenty-eight thousand, thirty-eight".