705617 has 8 divisors (see below), whose sum is σ = 803520. Its totient is φ = 613360.

The previous prime is 705613. The next prime is 705631. The reversal of 705617 is 716507.

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

It is not a de Polignac number, because 705617 - 2² = 705613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705613) 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, 1142 + ... + 1647.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2⁷⁰⁵⁶¹⁷ is an apocalyptic number.

It is an amenable number.

705617 is a deficient number, since it is larger than the sum of its proper divisors (97903).

705617 is a wasteful number, since it uses less digits than its factorization.

705617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 705617 is about 840.0101189867. The cubic root of 705617 is about 89.0272609332.

The spelling of 705617 in words is "seven hundred five thousand, six hundred seventeen".