28016273 has 2 divisors, whose sum is σ = 28016274. Its totient is φ = 28016272.

The previous prime is 28016269. The next prime is 28016299. The reversal of 28016273 is 37261082.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16265089 + 11751184 = 4033^2 + 3428^2 .

It is a cyclic number.

It is not a de Polignac number, because 28016273 - 2² = 28016269 is a prime.

It is not a weakly prime, because it can be changed into another prime (28016173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14008136 + 14008137.

It is an arithmetic number, because the mean of its divisors is an integer number (14008137).

Almost surely, 2^28016273 is an apocalyptic number.

It is an amenable number.

28016273 is a deficient number, since it is larger than the sum of its proper divisors (1).

28016273 is an equidigital number, since it uses as much as digits as its factorization.

28016273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 28016273 is about 5293.0400527485. The cubic root of 28016273 is about 303.7177124763.

The spelling of 28016273 in words is "twenty-eight million, sixteen thousand, two hundred seventy-three".