729780834 has 16 divisors (see below), whose sum is σ = 1459942272. Its totient is φ = 243196848.

The previous prime is 729780809. The next prime is 729780871. The reversal of 729780834 is 438087927.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13152 + ... + 40404.

It is an arithmetic number, because the mean of its divisors is an integer number (91246392).

Almost surely, 2^729780834 is an apocalyptic number.

729780834 is an abundant number, since it is smaller than the sum of its proper divisors (730161438).

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

729780834 is a wasteful number, since it uses less digits than its factorization.

729780834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31721.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 729780834 is about 27014.4560189540. The cubic root of 729780834 is about 900.3212162063.

The spelling of 729780834 in words is "seven hundred twenty-nine million, seven hundred eighty thousand, eight hundred thirty-four".