79786 has 16 divisors (see below), whose sum is σ = 141120. Its totient is φ = 33120.

The previous prime is 79777. The next prime is 79801. The reversal of 79786 is 68797.

Its product of digits (21168) is a multiple of the sum of its prime divisors (189).

It is a plaindrome in base 16.

It is a nialpdrome in base 14.

It is an unprimeable number.

79786 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, 505 + ... + 643.

It is an arithmetic number, because the mean of its divisors is an integer number (8820).

2⁷⁹⁷⁸⁶ is an apocalyptic number.

79786 is a deficient number, since it is larger than the sum of its proper divisors (61334).

79786 is a wasteful number, since it uses less digits than its factorization.

79786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189.

The product of its digits is 21168, while the sum is 37.

The square root of 79786 is about 282.4641570182. The cubic root of 79786 is about 43.0502387392.

The spelling of 79786 in words is "seventy-nine thousand, seven hundred eighty-six".