706665 has 8 divisors (see below), whose sum is σ = 1130688. Its totient is φ = 376880.

The previous prime is 706661. The next prime is 706669. The reversal of 706665 is 566607.

It is an interprime number because it is at equal distance from previous prime (706661) and next prime (706669).

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

It is not a de Polignac number, because 706665 - 2² = 706661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (706661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23541 + ... + 23570.

It is an arithmetic number, because the mean of its divisors is an integer number (141336).

2⁷⁰⁶⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

706665 is a deficient number, since it is larger than the sum of its proper divisors (424023).

706665 is a wasteful number, since it uses less digits than its factorization.

706665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47119.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 706665 is about 840.6336895462. The cubic root of 706665 is about 89.0713143015.

The spelling of 706665 in words is "seven hundred six thousand, six hundred sixty-five".