706687 has 4 divisors (see below), whose sum is σ = 710080. Its totient is φ = 703296.

The previous prime is 706679. The next prime is 706703. The reversal of 706687 is 786607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786607 = 17 ⋅46271.

It is a cyclic number.

It is not a de Polignac number, because 706687 - 2³ = 706679 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1362 + ... + 1807.

It is an arithmetic number, because the mean of its divisors is an integer number (177520).

2⁷⁰⁶⁶⁸⁷ is an apocalyptic number.

706687 is a deficient number, since it is larger than the sum of its proper divisors (3393).

706687 is a wasteful number, since it uses less digits than its factorization.

706687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 706687 is about 840.6467748109. The cubic root of 706687 is about 89.0722386191.

The spelling of 706687 in words is "seven hundred six thousand, six hundred eighty-seven".