28854113 has 2 divisors, whose sum is σ = 28854114. Its totient is φ = 28854112.

The previous prime is 28854109. The next prime is 28854131. The reversal of 28854113 is 31145882.

Together with next prime (28854131) 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., 28601104 + 253009 = 5348^2 + 503^2 .

It is a cyclic number.

It is not a de Polignac number, because 28854113 - 2² = 28854109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28854113.

It is not a weakly prime, because it can be changed into another prime (28854013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14427056 + 14427057.

It is an arithmetic number, because the mean of its divisors is an integer number (14427057).

Almost surely, 2^28854113 is an apocalyptic number.

It is an amenable number.

28854113 is a deficient number, since it is larger than the sum of its proper divisors (1).

28854113 is an equidigital number, since it uses as much as digits as its factorization.

28854113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 32.

The square root of 28854113 is about 5371.6024610911. The cubic root of 28854113 is about 306.7156310967.

Adding to 28854113 its reverse (31145882), we get a palindrome (59999995).

The spelling of 28854113 in words is "twenty-eight million, eight hundred fifty-four thousand, one hundred thirteen".