729605836 has 12 divisors (see below), whose sum is σ = 1277215128. Its totient is φ = 364687232.

The previous prime is 729605831. The next prime is 729605861. The reversal of 729605836 is 638506927.

It is not an unprimeable number, because it can be changed into a prime (729605831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13861 + ... + 40636.

It is an arithmetic number, because the mean of its divisors is an integer number (106434594).

Almost surely, 2^729605836 is an apocalyptic number.

It is an amenable number.

729605836 is a deficient number, since it is larger than the sum of its proper divisors (547609292).

729605836 is a wasteful number, since it uses less digits than its factorization.

729605836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57848 (or 57846 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 729605836 is about 27011.2168552252. The cubic root of 729605836 is about 900.2492461937.

The spelling of 729605836 in words is "seven hundred twenty-nine million, six hundred five thousand, eight hundred thirty-six".