705538 has 8 divisors (see below), whose sum is σ = 1064700. Its totient is φ = 350640.

The previous prime is 705533. The next prime is 705559. The reversal of 705538 is 835507.

It can be written as a sum of positive squares in 2 ways, for example, as 683929 + 21609 = 827^2 + 147^2 .

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

It is not an unprimeable number, because it can be changed into a prime (705533) 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, 613 + ... + 1336.

2⁷⁰⁵⁵³⁸ is an apocalyptic number.

705538 is a deficient number, since it is larger than the sum of its proper divisors (359162).

705538 is a wasteful number, since it uses less digits than its factorization.

705538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 705538 is about 839.9630944274. The cubic root of 705538 is about 89.0239383488.

The spelling of 705538 in words is "seven hundred five thousand, five hundred thirty-eight".