28198853 has 2 divisors, whose sum is σ = 28198854. Its totient is φ = 28198852.

The previous prime is 28198843. The next prime is 28198931. The reversal of 28198853 is 35889182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21883684 + 6315169 = 4678^2 + 2513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28198853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28198823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14099426 + 14099427.

It is an arithmetic number, because the mean of its divisors is an integer number (14099427).

Almost surely, 2^28198853 is an apocalyptic number.

It is an amenable number.

28198853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28198853 is an equidigital number, since it uses as much as digits as its factorization.

28198853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 44.

The square root of 28198853 is about 5310.2592215447. The cubic root of 28198853 is about 304.3760531202.

The spelling of 28198853 in words is "twenty-eight million, one hundred ninety-eight thousand, eight hundred fifty-three".