913728 has 28 divisors (see below), whose sum is σ = 2418080. Its totient is φ = 304512.

The previous prime is 913723. The next prime is 913739. The reversal of 913728 is 827319.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 913695 and 913704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913723) by changing a digit.

913728 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (86360).

2⁹¹³⁷²⁸ is an apocalyptic number.

It is an amenable number.

913728 is an abundant number, since it is smaller than the sum of its proper divisors (1504352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

913728 is a wasteful number, since it uses less digits than its factorization.

913728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774 (or 4764 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 913728 is about 955.8912071988. The cubic root of 913728 is about 97.0373611703.

The spelling of 913728 in words is "nine hundred thirteen thousand, seven hundred twenty-eight".