28284101 has 2 divisors, whose sum is σ = 28284102. Its totient is φ = 28284100.

The previous prime is 28284097. The next prime is 28284119. The reversal of 28284101 is 10148282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22572001 + 5712100 = 4751^2 + 2390^2 .

It is a cyclic number.

It is not a de Polignac number, because 28284101 - 2² = 28284097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28284161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14142050 + 14142051.

It is an arithmetic number, because the mean of its divisors is an integer number (14142051).

Almost surely, 2^28284101 is an apocalyptic number.

It is an amenable number.

28284101 is a deficient number, since it is larger than the sum of its proper divisors (1).

28284101 is an equidigital number, since it uses as much as digits as its factorization.

28284101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 28284101 is about 5318.2798910926. The cubic root of 28284101 is about 304.6824644761.

The spelling of 28284101 in words is "twenty-eight million, two hundred eighty-four thousand, one hundred one".