100709 has 4 divisors (see below), whose sum is σ = 115104. Its totient is φ = 86316.

The previous prime is 100703. The next prime is 100733. The reversal of 100709 is 907001.

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: 907001 = 17 ⋅53353.

It is a cyclic number.

It is not a de Polignac number, because 100709 - 2⁴ = 100693 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100703) 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, 7187 + ... + 7200.

It is an arithmetic number, because the mean of its divisors is an integer number (28776).

2¹⁰⁰⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

100709 is a deficient number, since it is larger than the sum of its proper divisors (14395).

100709 is an equidigital number, since it uses as much as digits as its factorization.

100709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14394.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 100709 is about 317.3468134392. The cubic root of 100709 is about 46.5253263199.

The spelling of 100709 in words is "one hundred thousand, seven hundred nine".