106709 has 4 divisors (see below), whose sum is σ = 113004. Its totient is φ = 100416.

The previous prime is 106703. The next prime is 106721. The reversal of 106709 is 907601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 907601 = 43 ⋅21107.

It can be written as a sum of positive squares in 2 ways, for example, as 96100 + 10609 = 310^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 106709 - 2⁴ = 106693 is a prime.

It is a super-2 number, since 2×106709² = 22773621362, 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 (106703) 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, 3122 + ... + 3155.

It is an arithmetic number, because the mean of its divisors is an integer number (28251).

2¹⁰⁶⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

106709 is a deficient number, since it is larger than the sum of its proper divisors (6295).

106709 is an equidigital number, since it uses as much as digits as its factorization.

106709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 106709 is about 326.6634353582. The cubic root of 106709 is about 47.4315171946.

The spelling of 106709 in words is "one hundred six thousand, seven hundred nine".