706687165 has 4 divisors (see below), whose sum is σ = 848024604. Its totient is φ = 565349728.

The previous prime is 706687147. The next prime is 706687187. The reversal of 706687165 is 561786607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561786607 = 17 ⋅33046271.

It can be written as a sum of positive squares in 2 ways, for example, as 275460409 + 431226756 = 16597^2 + 20766^2 .

It is a cyclic number.

It is not a de Polignac number, because 706687165 - 2¹¹ = 706685117 is a prime.

It is a Duffinian number.

It is a congruent 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, 70668712 + ... + 70668721.

It is an arithmetic number, because the mean of its divisors is an integer number (212006151).

Almost surely, 2^706687165 is an apocalyptic number.

It is an amenable number.

706687165 is a deficient number, since it is larger than the sum of its proper divisors (141337439).

706687165 is a wasteful number, since it uses less digits than its factorization.

706687165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141337438.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 706687165 is about 26583.5882641904. The cubic root of 706687165 is about 890.7224555140.

The spelling of 706687165 in words is "seven hundred six million, six hundred eighty-seven thousand, one hundred sixty-five".