728754227 has 2 divisors, whose sum is σ = 728754228. Its totient is φ = 728754226.

The previous prime is 728754199. The next prime is 728754233. The reversal of 728754227 is 722457827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 728754227 - 2⁶ = 728754163 is a prime.

It is not a weakly prime, because it can be changed into another prime (728754277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364377113 + 364377114.

It is an arithmetic number, because the mean of its divisors is an integer number (364377114).

Almost surely, 2^728754227 is an apocalyptic number.

728754227 is a deficient number, since it is larger than the sum of its proper divisors (1).

728754227 is an equidigital number, since it uses as much as digits as its factorization.

728754227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 439040, while the sum is 44.

The square root of 728754227 is about 26995.4482644760. The cubic root of 728754227 is about 899.8988474795.

The spelling of 728754227 in words is "seven hundred twenty-eight million, seven hundred fifty-four thousand, two hundred twenty-seven".