728669118 has 32 divisors (see below), whose sum is σ = 1539046656. Its totient is φ = 229526528.

The previous prime is 728669111. The next prime is 728669119. The reversal of 728669118 is 811966827.

It is a super-3 number, since 3×728669118³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728669111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20355 + ... + 43262.

It is an arithmetic number, because the mean of its divisors is an integer number (48095208).

Almost surely, 2^728669118 is an apocalyptic number.

728669118 is an abundant number, since it is smaller than the sum of its proper divisors (810377538).

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

728669118 is a wasteful number, since it uses less digits than its factorization.

728669118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63728.

The product of its digits is 290304, while the sum is 48.

The square root of 728669118 is about 26993.8718601093. The cubic root of 728669118 is about 899.8638139616.

The spelling of 728669118 in words is "seven hundred twenty-eight million, six hundred sixty-nine thousand, one hundred eighteen".