28853897 has 2 divisors, whose sum is σ = 28853898. Its totient is φ = 28853896.

The previous prime is 28853893. The next prime is 28853917. The reversal of 28853897 is 79835882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21799561 + 7054336 = 4669^2 + 2656^2 .

It is a cyclic number.

It is not a de Polignac number, because 28853897 - 2² = 28853893 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28853893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14426948 + 14426949.

It is an arithmetic number, because the mean of its divisors is an integer number (14426949).

Almost surely, 2^28853897 is an apocalyptic number.

It is an amenable number.

28853897 is a deficient number, since it is larger than the sum of its proper divisors (1).

28853897 is an equidigital number, since it uses as much as digits as its factorization.

28853897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 50.

The square root of 28853897 is about 5371.5823553214. The cubic root of 28853897 is about 306.7148657438.

The spelling of 28853897 in words is "twenty-eight million, eight hundred fifty-three thousand, eight hundred ninety-seven".