79018 has 4 divisors (see below), whose sum is σ = 118530. Its totient is φ = 39508.

The previous prime is 78989. The next prime is 79031. The reversal of 79018 is 81097.

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

It can be written as a sum of positive squares in only one way, i.e., 74529 + 4489 = 273^2 + 67^2 .

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 78983 and 79001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19753 + ... + 19756.

2⁷⁹⁰¹⁸ is an apocalyptic number.

79018 is a deficient number, since it is larger than the sum of its proper divisors (39512).

79018 is a wasteful number, since it uses less digits than its factorization.

79018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39511.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 79018 is about 281.1014051904. The cubic root of 79018 is about 42.9116628889.

It can be divided in two parts, 790 and 18, that added together give a palindrome (808).

The spelling of 79018 in words is "seventy-nine thousand, eighteen".