1009705 has 8 divisors (see below), whose sum is σ = 1225800. Its totient is φ = 798336.

The previous prime is 1009669. The next prime is 1009727. The reversal of 1009705 is 5079001.

1009705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17689 + 992016 = 133^2 + 996^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1009705 - 2⁹ = 1009193 is a prime.

It is an Ulam number.

1009705 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (153225).

2^1009705 is an apocalyptic number.

It is an amenable number.

1009705 is a deficient number, since it is larger than the sum of its proper divisors (216095).

1009705 is an equidigital number, since it uses as much as digits as its factorization.

1009705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 1009705 is about 1004.8407834080. The cubic root of 1009705 is about 100.3224590838.

The spelling of 1009705 in words is "one million, nine thousand, seven hundred five".