734688728 has 16 divisors (see below), whose sum is σ = 1458573480. Its totient is φ = 345735808.

The previous prime is 734688683. The next prime is 734688733. The reversal of 734688728 is 827886437.

It is a self number, because there is not a number n which added to its sum of digits gives 734688728.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2700926 + ... + 2701197.

Almost surely, 2^734688728 is an apocalyptic number.

It is an amenable number.

734688728 is a deficient number, since it is larger than the sum of its proper divisors (723884752).

734688728 is a wasteful number, since it uses less digits than its factorization.

734688728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5402146 (or 5402142 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 53.

The square root of 734688728 is about 27105.1420951819. The cubic root of 734688728 is about 902.3349771809.

The spelling of 734688728 in words is "seven hundred thirty-four million, six hundred eighty-eight thousand, seven hundred twenty-eight".