28052747 has 2 divisors, whose sum is σ = 28052748. Its totient is φ = 28052746.

The previous prime is 28052681. The next prime is 28052753. The reversal of 28052747 is 74725082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28052747 - 2¹⁴ = 28036363 is a prime.

It is a super-2 number, since 2×28052747² = 1573913228492018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28052767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14026373 + 14026374.

It is an arithmetic number, because the mean of its divisors is an integer number (14026374).

Almost surely, 2^28052747 is an apocalyptic number.

28052747 is a deficient number, since it is larger than the sum of its proper divisors (1).

28052747 is an equidigital number, since it uses as much as digits as its factorization.

28052747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 28052747 is about 5296.4844000525. The cubic root of 28052747 is about 303.8494572897.

The spelling of 28052747 in words is "twenty-eight million, fifty-two thousand, seven hundred forty-seven".