705983 has 8 divisors (see below), whose sum is σ = 754800. Its totient is φ = 658368.

The previous prime is 705973. The next prime is 705989. The reversal of 705983 is 389507.

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

It is a cyclic number.

It is not a de Polignac number, because 705983 - 2⁴ = 705967 is a prime.

It is an Ulam number.

It is a Duffinian 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.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133 + ... + 1641.

It is an arithmetic number, because the mean of its divisors is an integer number (94350).

2⁷⁰⁵⁹⁸³ is an apocalyptic number.

705983 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

705983 is a deficient number, since it is larger than the sum of its proper divisors (48817).

705983 is a wasteful number, since it uses less digits than its factorization.

705983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 705983 is about 840.2279452625. The cubic root of 705983 is about 89.0426509373.

The spelling of 705983 in words is "seven hundred five thousand, nine hundred eighty-three".