103942889 has 4 divisors (see below), whose sum is σ = 103990740. Its totient is φ = 103895040.

The previous prime is 103942829. The next prime is 103942921. The reversal of 103942889 is 988249301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83539600 + 20403289 = 9140^2 + 4517^2 .

It is a cyclic number.

It is not a de Polignac number, because 103942889 - 2⁸ = 103942633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103942829) 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, 20504 + ... + 25065.

It is an arithmetic number, because the mean of its divisors is an integer number (25997685).

Almost surely, 2^103942889 is an apocalyptic number.

It is an amenable number.

103942889 is a deficient number, since it is larger than the sum of its proper divisors (47851).

103942889 is an equidigital number, since it uses as much as digits as its factorization.

103942889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47850.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 103942889 is about 10195.2385455172. The cubic root of 103942889 is about 470.1808403237.

The spelling of 103942889 in words is "one hundred three million, nine hundred forty-two thousand, eight hundred eighty-nine".