728025163 has 2 divisors, whose sum is σ = 728025164. Its totient is φ = 728025162.

The previous prime is 728025161. The next prime is 728025169. The reversal of 728025163 is 361520827.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 728025163 - 2¹ = 728025161 is a prime.

It is a super-2 number, since 2×728025163² = 1060041275922353138, which contains 22 as substring.

Together with 728025161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (728025161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364012581 + 364012582.

It is an arithmetic number, because the mean of its divisors is an integer number (364012582).

Almost surely, 2^728025163 is an apocalyptic number.

728025163 is a deficient number, since it is larger than the sum of its proper divisors (1).

728025163 is an equidigital number, since it uses as much as digits as its factorization.

728025163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 728025163 is about 26981.9414238487. The cubic root of 728025163 is about 899.5986535603.

The spelling of 728025163 in words is "seven hundred twenty-eight million, twenty-five thousand, one hundred sixty-three".