728203471 has 2 divisors, whose sum is σ = 728203472. Its totient is φ = 728203470.

The previous prime is 728203433. The next prime is 728203493. The reversal of 728203471 is 174302827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 728203471 - 2²³ = 719814863 is a prime.

It is a super-3 number, since 3×728203471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728203271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364101735 + 364101736.

It is an arithmetic number, because the mean of its divisors is an integer number (364101736).

Almost surely, 2^728203471 is an apocalyptic number.

728203471 is a deficient number, since it is larger than the sum of its proper divisors (1).

728203471 is an equidigital number, since it uses as much as digits as its factorization.

728203471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 728203471 is about 26985.2454315317. The cubic root of 728203471 is about 899.6720908310.

The spelling of 728203471 in words is "seven hundred twenty-eight million, two hundred three thousand, four hundred seventy-one".