706538 has 16 divisors (see below), whose sum is σ = 1224960. Its totient is φ = 299376.

The previous prime is 706523. The next prime is 706547. The reversal of 706538 is 835607.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 706538.

It is an unprimeable number.

706538 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (76560).

2⁷⁰⁶⁵³⁸ is an apocalyptic number.

706538 is a deficient number, since it is larger than the sum of its proper divisors (518422).

706538 is a wasteful number, since it uses less digits than its factorization.

706538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 706538 is about 840.5581478994. The cubic root of 706538 is about 89.0659780934.

The spelling of 706538 in words is "seven hundred six thousand, five hundred thirty-eight".