728792 has 8 divisors (see below), whose sum is σ = 1366500. Its totient is φ = 364392.

The previous prime is 728771. The next prime is 728809. The reversal of 728792 is 297827.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×728792² = 1062275558528, which contains 22 as substring.

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 728792.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45542 + ... + 45557.

2⁷²⁸⁷⁹² is an apocalyptic number.

It is an amenable number.

728792 is a deficient number, since it is larger than the sum of its proper divisors (637708).

728792 is a wasteful number, since it uses less digits than its factorization.

728792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91105 (or 91101 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 728792 is about 853.6931533051. The cubic root of 728792 is about 89.9914395150.

Adding to 728792 its sum of digits (35), we get a palindrome (728827).

The spelling of 728792 in words is "seven hundred twenty-eight thousand, seven hundred ninety-two".