729306826 has 8 divisors (see below), whose sum is σ = 1094683104. Its totient is φ = 364412460.

The previous prime is 729306769. The next prime is 729306829. The reversal of 729306826 is 628603927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (729306829) 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, 116670 + ... + 122761.

It is an arithmetic number, because the mean of its divisors is an integer number (136835388).

Almost surely, 2^729306826 is an apocalyptic number.

729306826 is a deficient number, since it is larger than the sum of its proper divisors (365376278).

729306826 is a wasteful number, since it uses less digits than its factorization.

729306826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240956.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 729306826 is about 27005.6813652239. The cubic root of 729306826 is about 900.1262481332.

The spelling of 729306826 in words is "seven hundred twenty-nine million, three hundred six thousand, eight hundred twenty-six".