100006705 has 4 divisors (see below), whose sum is σ = 120008052. Its totient is φ = 80005360.

The previous prime is 100006693. The next prime is 100006721. The reversal of 100006705 is 507600001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507600001 = 1933 ⋅262597.

It can be written as a sum of positive squares in 2 ways, for example, as 31911201 + 68095504 = 5649^2 + 8252^2 .

It is not a de Polignac number, because 100006705 - 2¹³ = 99998513 is a prime.

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, 10000666 + ... + 10000675.

It is an arithmetic number, because the mean of its divisors is an integer number (30002013).

Almost surely, 2^100006705 is an apocalyptic number.

It is an amenable number.

100006705 is a deficient number, since it is larger than the sum of its proper divisors (20001347).

100006705 is an equidigital number, since it uses as much as digits as its factorization.

100006705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20001346.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 100006705 is about 10000.3352443806. The cubic root of 100006705 is about 464.1692570805.

Adding to 100006705 its reverse (507600001), we get a palindrome (607606706).

The spelling of 100006705 in words is "one hundred million, six thousand, seven hundred five".