79705 has 8 divisors (see below), whose sum is σ = 100800. Its totient is φ = 60336.

The previous prime is 79699. The next prime is 79757. The reversal of 79705 is 50797.

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 79705 - 2³ = 79697 is a prime.

79705 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325 + ... + 514.

It is an arithmetic number, because the mean of its divisors is an integer number (12600).

2⁷⁹⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

79705 is a deficient number, since it is larger than the sum of its proper divisors (21095).

79705 is a wasteful number, since it uses less digits than its factorization.

79705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 79705 is about 282.3207395853. The cubic root of 79705 is about 43.0356653802.

It can be divided in two parts, 79 and 705, that added together give a square (784 = 28²).

The spelling of 79705 in words is "seventy-nine thousand, seven hundred five".