728198213 has 12 divisors (see below), whose sum is σ = 790026432. Its totient is φ = 670768320.

The previous prime is 728198209. The next prime is 728198231. The reversal of 728198213 is 312891827.

It is not a de Polignac number, because 728198213 - 2² = 728198209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728198203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13223 + ... + 40388.

It is an arithmetic number, because the mean of its divisors is an integer number (65835536).

Almost surely, 2^728198213 is an apocalyptic number.

It is an amenable number.

728198213 is a deficient number, since it is larger than the sum of its proper divisors (61828219).

728198213 is a wasteful number, since it uses less digits than its factorization.

728198213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53692 (or 53675 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 728198213 is about 26985.1480077468. The cubic root of 728198213 is about 899.6699254622.

The spelling of 728198213 in words is "seven hundred twenty-eight million, one hundred ninety-eight thousand, two hundred thirteen".