28052779 has 2 divisors, whose sum is σ = 28052780. Its totient is φ = 28052778.

The previous prime is 28052777. The next prime is 28052803. The reversal of 28052779 is 97725082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28052779 - 2¹ = 28052777 is a prime.

It is a super-4 number, since 4×28052779⁴ (a number of 31 digits) contains 4444 as substring.

Together with 28052777, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28052777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14026389 + 14026390.

It is an arithmetic number, because the mean of its divisors is an integer number (14026390).

Almost surely, 2^28052779 is an apocalyptic number.

28052779 is a deficient number, since it is larger than the sum of its proper divisors (1).

28052779 is an equidigital number, since it uses as much as digits as its factorization.

28052779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 28052779 is about 5296.4874209234. The cubic root of 28052779 is about 303.8495728242.

The spelling of 28052779 in words is "twenty-eight million, fifty-two thousand, seven hundred seventy-nine".