729738658 has 24 divisors (see below), whose sum is σ = 1244664540. Its totient is φ = 320258400.

The previous prime is 729738649. The next prime is 729738677. The reversal of 729738658 is 856837927.

It can be written as a sum of positive squares in 2 ways, for example, as 728082289 + 1656369 = 26983^2 + 1287^2 .

It is a junction number, because it is equal to n+sod(n) for n = 729738599 and 729738608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44973 + ... + 59008.

Almost surely, 2^729738658 is an apocalyptic number.

729738658 is a deficient number, since it is larger than the sum of its proper divisors (514925882).

729738658 is a wasteful number, since it uses less digits than its factorization.

729738658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104034 (or 104023 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The square root of 729738658 is about 27013.6753885879. The cubic root of 729738658 is about 900.3038718761.

The spelling of 729738658 in words is "seven hundred twenty-nine million, seven hundred thirty-eight thousand, six hundred fifty-eight".