729687748 has 12 divisors (see below), whose sum is σ = 1277423532. Its totient is φ = 364709600.

The previous prime is 729687727. The next prime is 729687797. The reversal of 729687748 is 847786927.

It can be written as a sum of positive squares in 2 ways, for example, as 114746944 + 614940804 = 10712^2 + 24798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 729687692 and 729687701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20803 + ... + 43498.

It is an arithmetic number, because the mean of its divisors is an integer number (106451961).

Almost surely, 2^729687748 is an apocalyptic number.

It is an amenable number.

729687748 is a deficient number, since it is larger than the sum of its proper divisors (547735784).

729687748 is a wasteful number, since it uses less digits than its factorization.

729687748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67142 (or 67140 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 58.

The square root of 729687748 is about 27012.7330716460. The cubic root of 729687748 is about 900.2829349121.

The spelling of 729687748 in words is "seven hundred twenty-nine million, six hundred eighty-seven thousand, seven hundred forty-eight".