706409 has 8 divisors (see below), whose sum is σ = 777600. Its totient is φ = 636400.

The previous prime is 706403. The next prime is 706417. The reversal of 706409 is 904607.

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 706409 - 2¹² = 702313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1424 + ... + 1854.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

2⁷⁰⁶⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

706409 is a deficient number, since it is larger than the sum of its proper divisors (71191).

706409 is a wasteful number, since it uses less digits than its factorization.

706409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 706409 is about 840.4814096695. The cubic root of 706409 is about 89.0605571957.

The spelling of 706409 in words is "seven hundred six thousand, four hundred nine".