729748 has 12 divisors (see below), whose sum is σ = 1284052. Its totient is φ = 362880.

The previous prime is 729737. The next prime is 729749. The reversal of 729748 is 847927.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 501264 + 228484 = 708^2 + 478^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729749) by changing a digit.

729748 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, 586 + ... + 1342.

2⁷²⁹⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

729748 is a deficient number, since it is larger than the sum of its proper divisors (554304).

729748 is a wasteful number, since it uses less digits than its factorization.

729748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 1000 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 729748 is about 854.2528899571. The cubic root of 729748 is about 90.0307713709.

The spelling of 729748 in words is "seven hundred twenty-nine thousand, seven hundred forty-eight".