28052819 has 2 divisors, whose sum is σ = 28052820. Its totient is φ = 28052818.

The previous prime is 28052809. The next prime is 28052837. The reversal of 28052819 is 91825082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28052819 - 2⁴ = 28052803 is a prime.

It is a super-2 number, since 2×28052819² = 1573921307693522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28052809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14026409 + 14026410.

It is an arithmetic number, because the mean of its divisors is an integer number (14026410).

Almost surely, 2^28052819 is an apocalyptic number.

28052819 is a deficient number, since it is larger than the sum of its proper divisors (1).

28052819 is an equidigital number, since it uses as much as digits as its factorization.

28052819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 28052819 is about 5296.4911970096. The cubic root of 28052819 is about 303.8497172422.

The spelling of 28052819 in words is "twenty-eight million, fifty-two thousand, eight hundred nineteen".