705607 has 4 divisors (see below), whose sum is σ = 806416. Its totient is φ = 604800.

The previous prime is 705559. The next prime is 705613. The reversal of 705607 is 706507.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 705607 - 2¹¹ = 703559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705307) 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, 50394 + ... + 50407.

It is an arithmetic number, because the mean of its divisors is an integer number (201604).

2⁷⁰⁵⁶⁰⁷ is an apocalyptic number.

705607 is a deficient number, since it is larger than the sum of its proper divisors (100809).

705607 is a wasteful number, since it uses less digits than its factorization.

705607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100808.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 705607 is about 840.0041666563. The cubic root of 705607 is about 89.0268403666.

Subtracting 705607 from its reverse (706507), we obtain a square (900 = 30²).

The spelling of 705607 in words is "seven hundred five thousand, six hundred seven".