728847113 has 2 divisors, whose sum is σ = 728847114. Its totient is φ = 728847112.

The previous prime is 728847101. The next prime is 728847131. The reversal of 728847113 is 311748827.

Together with next prime (728847131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 641760889 + 87086224 = 25333^2 + 9332^2 .

It is a cyclic number.

It is not a de Polignac number, because 728847113 - 2⁸ = 728846857 is a prime.

It is a super-2 number, since 2×728847113² = 1062436228256869538, which contains 22 as substring.

It is equal to p_37667930 and since 728847113 and 37667930 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (728847193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364423556 + 364423557.

It is an arithmetic number, because the mean of its divisors is an integer number (364423557).

Almost surely, 2^728847113 is an apocalyptic number.

It is an amenable number.

728847113 is a deficient number, since it is larger than the sum of its proper divisors (1).

728847113 is an equidigital number, since it uses as much as digits as its factorization.

728847113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 41.

The square root of 728847113 is about 26997.1686108007. The cubic root of 728847113 is about 899.9370791403.

It can be divided in two parts, 72884 and 7113, that added together give a palindrome (79997).

The spelling of 728847113 in words is "seven hundred twenty-eight million, eight hundred forty-seven thousand, one hundred thirteen".