728025241 has 4 divisors (see below), whose sum is σ = 728101584. Its totient is φ = 727948900.

The previous prime is 728025227. The next prime is 728025247. The reversal of 728025241 is 142520827.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 142520827 = 61 ⋅2336407.

It is a cyclic number.

It is not a de Polignac number, because 728025241 - 2¹¹ = 728023193 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728025247) 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, 21415 + ... + 43756.

It is an arithmetic number, because the mean of its divisors is an integer number (182025396).

Almost surely, 2^728025241 is an apocalyptic number.

It is an amenable number.

728025241 is a deficient number, since it is larger than the sum of its proper divisors (76343).

728025241 is a wasteful number, since it uses less digits than its factorization.

728025241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76342.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 728025241 is about 26981.9428692598. The cubic root of 728025241 is about 899.5986856877.

The spelling of 728025241 in words is "seven hundred twenty-eight million, twenty-five thousand, two hundred forty-one".