28788853 has 2 divisors, whose sum is σ = 28788854. Its totient is φ = 28788852.

The previous prime is 28788841. The next prime is 28788869. The reversal of 28788853 is 35888782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26286129 + 2502724 = 5127^2 + 1582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28788853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28788797 and 28788806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28788833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14394426 + 14394427.

It is an arithmetic number, because the mean of its divisors is an integer number (14394427).

Almost surely, 2^28788853 is an apocalyptic number.

It is an amenable number.

28788853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28788853 is an equidigital number, since it uses as much as digits as its factorization.

28788853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 860160, while the sum is 49.

The square root of 28788853 is about 5365.5244850807. The cubic root of 28788853 is about 306.4842213206.

The spelling of 28788853 in words is "twenty-eight million, seven hundred eighty-eight thousand, eight hundred fifty-three".