705616 has 10 divisors (see below), whose sum is σ = 1367162. Its totient is φ = 352800.

The previous prime is 705613. The next prime is 705631. The reversal of 705616 is 616507.

It can be written as a sum of positive squares in only one way, i.e., 705600 + 16 = 840^2 + 4^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22035 + ... + 22066.

2⁷⁰⁵⁶¹⁶ is an apocalyptic number.

It is an amenable number.

705616 is a deficient number, since it is larger than the sum of its proper divisors (661546).

705616 is a wasteful number, since it uses less digits than its factorization.

705616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44109 (or 44103 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 705616 is about 840.0095237555. The cubic root of 705616 is about 89.0272188768.

It can be divided in two parts, 7056 and 16, that multiplied together give a square (112896 = 336²).

The spelling of 705616 in words is "seven hundred five thousand, six hundred sixteen".