79247 has 4 divisors (see below), whose sum is σ = 90576. Its totient is φ = 67920.

The previous prime is 79241. The next prime is 79259. The reversal of 79247 is 74297.

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

It is a cyclic number.

It is not a de Polignac number, because 79247 - 2⁴ = 79231 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5654 + ... + 5667.

It is an arithmetic number, because the mean of its divisors is an integer number (22644).

2⁷⁹²⁴⁷ is an apocalyptic number.

79247 is a deficient number, since it is larger than the sum of its proper divisors (11329).

79247 is a wasteful number, since it uses less digits than its factorization.

79247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328.

The product of its digits is 3528, while the sum is 29.

The square root of 79247 is about 281.5084368185. The cubic root of 79247 is about 42.9530766308.

Subtracting from 79247 its reverse (74297), we obtain a triangular number (4950 = T₉₉).

The spelling of 79247 in words is "seventy-nine thousand, two hundred forty-seven".