79556 has 6 divisors (see below), whose sum is σ = 139230. Its totient is φ = 39776.

The previous prime is 79549. The next prime is 79559. The reversal of 79556 is 65597.

It can be written as a sum of positive squares in only one way, i.e., 78400 + 1156 = 280^2 + 34^2 .

It is a d-powerful number, because it can be written as 7² + 9² + 5 + 5⁷ + 6⁴ .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (79559) by changing a digit.

79556 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, 9941 + ... + 9948.

It is an arithmetic number, because the mean of its divisors is an integer number (23205).

2⁷⁹⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

79556 is a deficient number, since it is larger than the sum of its proper divisors (59674).

79556 is a wasteful number, since it uses less digits than its factorization.

79556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19893 (or 19891 counting only the distinct ones).

The product of its digits is 9450, while the sum is 32.

The square root of 79556 is about 282.0567318821. The cubic root of 79556 is about 43.0088317897.

Subtracting from 79556 its sum of digits (32), we obtain a square (79524 = 282²).

The spelling of 79556 in words is "seventy-nine thousand, five hundred fifty-six".