706649 has 8 divisors (see below), whose sum is σ = 734400. Its totient is φ = 679536.

The previous prime is 706633. The next prime is 706661. The reversal of 706649 is 946607.

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

It is a cyclic number.

It is not a de Polignac number, because 706649 - 2⁴ = 706633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706669) 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, 3452 + ... + 3650.

It is an arithmetic number, because the mean of its divisors is an integer number (91800).

2⁷⁰⁶⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

706649 is a deficient number, since it is larger than the sum of its proper divisors (27751).

706649 is a wasteful number, since it uses less digits than its factorization.

706649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 706649 is about 840.6241728620. The cubic root of 706649 is about 89.0706420585.

The spelling of 706649 in words is "seven hundred six thousand, six hundred forty-nine".