28982113 has 2 divisors, whose sum is σ = 28982114. Its totient is φ = 28982112.

The previous prime is 28982111. The next prime is 28982131. The reversal of 28982113 is 31128982.

Together with next prime (28982131) 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., 19421649 + 9560464 = 4407^2 + 3092^2 .

It is a cyclic number.

It is not a de Polignac number, because 28982113 - 2¹ = 28982111 is a prime.

Together with 28982111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28982111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14491056 + 14491057.

It is an arithmetic number, because the mean of its divisors is an integer number (14491057).

Almost surely, 2^28982113 is an apocalyptic number.

It is an amenable number.

28982113 is a deficient number, since it is larger than the sum of its proper divisors (1).

28982113 is an equidigital number, since it uses as much as digits as its factorization.

28982113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 28982113 is about 5383.5037847112. The cubic root of 28982113 is about 307.1685034497.

It can be divided in two parts, 289821 and 13, that multiplied together give a palindrome (3767673).

The spelling of 28982113 in words is "twenty-eight million, nine hundred eighty-two thousand, one hundred thirteen".