729958656 has 72 divisors (see below), whose sum is σ = 2220307264. Its totient is φ = 208558080.

The previous prime is 729958637. The next prime is 729958673. The reversal of 729958656 is 656859927.

It is a junction number, because it is equal to n+sod(n) for n = 729958596 and 729958605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62515 + ... + 73266.

Almost surely, 2^729958656 is an apocalyptic number.

It is an amenable number.

729958656 is an abundant number, since it is smaller than the sum of its proper divisors (1490348608).

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

729958656 is a wasteful number, since it uses less digits than its factorization.

729958656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135807 (or 135793 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 57.

The square root of 729958656 is about 27017.7470563332. The cubic root of 729958656 is about 900.3943358381.

The spelling of 729958656 in words is "seven hundred twenty-nine million, nine hundred fifty-eight thousand, six hundred fifty-six".