28841539 has 2 divisors, whose sum is σ = 28841540. Its totient is φ = 28841538.

The previous prime is 28841531. The next prime is 28841551. The reversal of 28841539 is 93514882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28841539 - 2³ = 28841531 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28841531) 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, 14420769 + 14420770.

It is an arithmetic number, because the mean of its divisors is an integer number (14420770).

Almost surely, 2^28841539 is an apocalyptic number.

28841539 is a deficient number, since it is larger than the sum of its proper divisors (1).

28841539 is an equidigital number, since it uses as much as digits as its factorization.

28841539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The square root of 28841539 is about 5370.4319193152. The cubic root of 28841539 is about 306.6710712715.

The spelling of 28841539 in words is "twenty-eight million, eight hundred forty-one thousand, five hundred thirty-nine".