106989065 has 4 divisors (see below), whose sum is σ = 128386884. Its totient is φ = 85591248.

The previous prime is 106989037. The next prime is 106989073. The reversal of 106989065 is 560989601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560989601 = 29 ⋅19344469.

It can be written as a sum of positive squares in 2 ways, for example, as 13808656 + 93180409 = 3716^2 + 9653^2 .

It is a cyclic number.

It is not a de Polignac number, because 106989065 - 2¹⁴ = 106972681 is a prime.

It is a super-2 number, since 2×106989065² = 22893320059148450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10698902 + ... + 10698911.

It is an arithmetic number, because the mean of its divisors is an integer number (32096721).

Almost surely, 2^106989065 is an apocalyptic number.

It is an amenable number.

106989065 is a deficient number, since it is larger than the sum of its proper divisors (21397819).

106989065 is an equidigital number, since it uses as much as digits as its factorization.

106989065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21397818.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 106989065 is about 10343.5518561082. The cubic root of 106989065 is about 474.7297668813.

The spelling of 106989065 in words is "one hundred six million, nine hundred eighty-nine thousand, sixty-five".