728201233 has 4 divisors (see below), whose sum is σ = 735006960. Its totient is φ = 721395508.

The previous prime is 728201231. The next prime is 728201249. The reversal of 728201233 is 332102827.

728201233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 728201233 - 2¹ = 728201231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728201231) 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, 3402703 + ... + 3402916.

It is an arithmetic number, because the mean of its divisors is an integer number (183751740).

Almost surely, 2^728201233 is an apocalyptic number.

It is an amenable number.

728201233 is a deficient number, since it is larger than the sum of its proper divisors (6805727).

728201233 is a wasteful number, since it uses less digits than its factorization.

728201233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805726.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 728201233 is about 26985.2039643950. The cubic root of 728201233 is about 899.6711691709.

The spelling of 728201233 in words is "seven hundred twenty-eight million, two hundred one thousand, two hundred thirty-three".