28271699 has 2 divisors, whose sum is σ = 28271700. Its totient is φ = 28271698.

The previous prime is 28271693. The next prime is 28271729. The reversal of 28271699 is 99617282.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28271699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28271693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14135849 + 14135850.

It is an arithmetic number, because the mean of its divisors is an integer number (14135850).

Almost surely, 2^28271699 is an apocalyptic number.

28271699 is a deficient number, since it is larger than the sum of its proper divisors (1).

28271699 is an equidigital number, since it uses as much as digits as its factorization.

28271699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 28271699 is about 5317.1137847520. The cubic root of 28271699 is about 304.6379256219.

The spelling of 28271699 in words is "twenty-eight million, two hundred seventy-one thousand, six hundred ninety-nine".