3708706865 has 16 divisors (see below), whose sum is σ = 4565178576. Its totient is φ = 2890675200.

The previous prime is 3708706823. The next prime is 3708706867. The reversal of 3708706865 is 5686078073.

It can be written as a sum of positive squares in 8 ways, for example, as 2121799969 + 1586906896 = 46063^2 + 39836^2 .

It is not a de Polignac number, because 3708706865 - 2⁶ = 3708706801 is a prime.

It is a super-2 number, since 2×3708706865² = 27509013220996256450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3708706867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144119 + ... + 167891.

It is an arithmetic number, because the mean of its divisors is an integer number (285323661).

Almost surely, 2^3708706865 is an apocalyptic number.

It is an amenable number.

3708706865 is a deficient number, since it is larger than the sum of its proper divisors (856471711).

3708706865 is a wasteful number, since it uses less digits than its factorization.

3708706865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24580.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 3708706865 is about 60899.1532371346. The cubic root of 3708706865 is about 1547.8926429308.

The spelling of 3708706865 in words is "three billion, seven hundred eight million, seven hundred six thousand, eight hundred sixty-five".