728411 has 4 divisors (see below), whose sum is σ = 730800. Its totient is φ = 726024.

The previous prime is 728383. The next prime is 728417. The reversal of 728411 is 114827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 728411 - 2¹⁸ = 466267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656 + ... + 1373.

It is an arithmetic number, because the mean of its divisors is an integer number (182700).

2⁷²⁸⁴¹¹ is an apocalyptic number.

728411 is a deficient number, since it is larger than the sum of its proper divisors (2389).

728411 is a wasteful number, since it uses less digits than its factorization.

728411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388.

The product of its digits is 448, while the sum is 23.

The square root of 728411 is about 853.4699760390. The cubic root of 728411 is about 89.9757547860.

The spelling of 728411 in words is "seven hundred twenty-eight thousand, four hundred eleven".