102889 has 4 divisors (see below), whose sum is σ = 106240. Its totient is φ = 99540.

The previous prime is 102881. The next prime is 102911. The reversal of 102889 is 988201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 988201 = 73 ⋅13537.

It is a cyclic number.

It is not a de Polignac number, because 102889 - 2³ = 102881 is a prime.

It is a super-2 number, since 2×102889² = 21172292642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1629 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (26560).

2¹⁰²⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

102889 is a deficient number, since it is larger than the sum of its proper divisors (3351).

102889 is an equidigital number, since it uses as much as digits as its factorization.

102889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 102889 is about 320.7631524973. The cubic root of 102889 is about 46.8586366588.

The spelling of 102889 in words is "one hundred two thousand, eight hundred eighty-nine".