728616938 has 16 divisors (see below), whose sum is σ = 1292129280. Its totient is φ = 301496496.

The previous prime is 728616841. The next prime is 728616949. The reversal of 728616938 is 839616827.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896906 + ... + 897717.

It is an arithmetic number, because the mean of its divisors is an integer number (80758080).

Almost surely, 2^728616938 is an apocalyptic number.

728616938 is a deficient number, since it is larger than the sum of its proper divisors (563512342).

728616938 is a wasteful number, since it uses less digits than its factorization.

728616938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794661.

The product of its digits is 870912, while the sum is 50.

The square root of 728616938 is about 26992.9053271411. The cubic root of 728616938 is about 899.8423336977.

The spelling of 728616938 in words is "seven hundred twenty-eight million, six hundred sixteen thousand, nine hundred thirty-eight".