705982 has 4 divisors (see below), whose sum is σ = 1058976. Its totient is φ = 352990.

The previous prime is 705973. The next prime is 705989. The reversal of 705982 is 289507.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705989) by changing a digit.

705982 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 as a sum of consecutive naturals, namely, 176494 + ... + 176497.

It is an arithmetic number, because the mean of its divisors is an integer number (264744).

2⁷⁰⁵⁹⁸² is an apocalyptic number.

705982 is a deficient number, since it is larger than the sum of its proper divisors (352994).

705982 is a wasteful number, since it uses less digits than its factorization.

705982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352993.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 705982 is about 840.2273501857. The cubic root of 705982 is about 89.0426088953.

The spelling of 705982 in words is "seven hundred five thousand, nine hundred eighty-two".