106089989 has 4 divisors (see below), whose sum is σ = 108957324. Its totient is φ = 103222656.

The previous prime is 106089983. The next prime is 106090003. The reversal of 106089989 is 989980601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989980601 = 17 ⋅58234153.

It can be written as a sum of positive squares in 2 ways, for example, as 76300225 + 29789764 = 8735^2 + 5458^2 .

It is a cyclic number.

It is not a de Polignac number, because 106089989 - 2¹⁶ = 106024453 is a prime.

It is a super-3 number, since 3×106089989³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106089983) 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, 1433612 + ... + 1433685.

It is an arithmetic number, because the mean of its divisors is an integer number (27239331).

Almost surely, 2^106089989 is an apocalyptic number.

It is an amenable number.

106089989 is a deficient number, since it is larger than the sum of its proper divisors (2867335).

106089989 is an equidigital number, since it uses as much as digits as its factorization.

106089989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867334.

The product of its (nonzero) digits is 279936, while the sum is 50.

The square root of 106089989 is about 10299.9994660194. Note that the first 3 decimals coincide. The cubic root of 106089989 is about 473.3962370389.

The spelling of 106089989 in words is "one hundred six million, eighty-nine thousand, nine hundred eighty-nine".