728321114 has 8 divisors (see below), whose sum is σ = 1095234708. Its totient is φ = 363242880.

The previous prime is 728321081. The next prime is 728321117. The reversal of 728321114 is 411123827.

728321114 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 717972025 + 10349089 = 26795^2 + 3217^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (728321117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457847 + ... + 459434.

Almost surely, 2^728321114 is an apocalyptic number.

728321114 is a deficient number, since it is larger than the sum of its proper divisors (366913594).

728321114 is a wasteful number, since it uses less digits than its factorization.

728321114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917680.

The product of its digits is 2688, while the sum is 29.

The square root of 728321114 is about 26987.4251087428. The cubic root of 728321114 is about 899.7205362765.

The spelling of 728321114 in words is "seven hundred twenty-eight million, three hundred twenty-one thousand, one hundred fourteen".