102828289 has 4 divisors (see below), whose sum is σ = 102885120. Its totient is φ = 102771460.

The previous prime is 102828283. The next prime is 102828293. The reversal of 102828289 is 982828201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102828289 - 2³ = 102828281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102828281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25609 + ... + 29350.

It is an arithmetic number, because the mean of its divisors is an integer number (25721280).

Almost surely, 2^102828289 is an apocalyptic number.

It is an amenable number.

102828289 is a deficient number, since it is larger than the sum of its proper divisors (56831).

102828289 is an equidigital number, since it uses as much as digits as its factorization.

102828289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56830.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 102828289 is about 10140.4284426251. The cubic root of 102828289 is about 468.4941832835.

The spelling of 102828289 in words is "one hundred two million, eight hundred twenty-eight thousand, two hundred eighty-nine".