738728 has 16 divisors (see below), whose sum is σ = 1399680. Its totient is φ = 365488.

The previous prime is 738721. The next prime is 738743. The reversal of 738728 is 827837.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (738721) by changing a digit.

738728 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, 425 + ... + 1287.

It is an arithmetic number, because the mean of its divisors is an integer number (87480).

2⁷³⁸⁷²⁸ is an apocalyptic number.

It is an amenable number.

738728 is a deficient number, since it is larger than the sum of its proper divisors (660952).

738728 is a wasteful number, since it uses less digits than its factorization.

738728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 972 counting only the distinct ones).

The product of its digits is 18816, while the sum is 35.

The square root of 738728 is about 859.4928737343. The cubic root of 738728 is about 90.3985615977.

The spelling of 738728 in words is "seven hundred thirty-eight thousand, seven hundred twenty-eight".