728694716 has 24 divisors (see below), whose sum is σ = 1324375920. Its totient is φ = 350400512.

The previous prime is 728694713. The next prime is 728694737. The reversal of 728694716 is 617496827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728694713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17591 + ... + 42033.

It is an arithmetic number, because the mean of its divisors is an integer number (55182330).

Almost surely, 2^728694716 is an apocalyptic number.

It is an amenable number.

728694716 is a deficient number, since it is larger than the sum of its proper divisors (595681204).

728694716 is a wasteful number, since it uses less digits than its factorization.

728694716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24733 (or 24731 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 728694716 is about 26994.3460005980. The cubic root of 728694716 is about 899.8743511833.

The spelling of 728694716 in words is "seven hundred twenty-eight million, six hundred ninety-four thousand, seven hundred sixteen".