28083101 has 2 divisors, whose sum is σ = 28083102. Its totient is φ = 28083100.

The previous prime is 28083089. The next prime is 28083103. The reversal of 28083101 is 10138082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22080601 + 6002500 = 4699^2 + 2450^2 .

It is a cyclic number.

It is not a de Polignac number, because 28083101 - 2²² = 23888797 is a prime.

It is a super-3 number, since 3×28083101³ (a number of 23 digits) contains 333 as substring.

Together with 28083103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28083103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14041550 + 14041551.

It is an arithmetic number, because the mean of its divisors is an integer number (14041551).

Almost surely, 2^28083101 is an apocalyptic number.

It is an amenable number.

28083101 is a deficient number, since it is larger than the sum of its proper divisors (1).

28083101 is an equidigital number, since it uses as much as digits as its factorization.

28083101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 28083101 is about 5299.3491109758. The cubic root of 28083101 is about 303.9590095067.

The spelling of 28083101 in words is "twenty-eight million, eighty-three thousand, one hundred one".