1039705 has 4 divisors (see below), whose sum is σ = 1247652. Its totient is φ = 831760.

The previous prime is 1039681. The next prime is 1039733. The reversal of 1039705 is 5079301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5079301 = 971 ⋅5231.

It can be written as a sum of positive squares in 2 ways, for example, as 635209 + 404496 = 797^2 + 636^2 .

It is not a de Polignac number, because 1039705 - 2¹¹ = 1037657 is a prime.

It is a Duffinian number.

1039705 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1039705.

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, 103966 + ... + 103975.

It is an arithmetic number, because the mean of its divisors is an integer number (311913).

2^1039705 is an apocalyptic number.

It is an amenable number.

1039705 is a deficient number, since it is larger than the sum of its proper divisors (207947).

1039705 is an equidigital number, since it uses as much as digits as its factorization.

1039705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207946.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 1039705 is about 1019.6592568108. The cubic root of 1039705 is about 101.3063599241.

The spelling of 1039705 in words is "one million, thirty-nine thousand, seven hundred five".