979247 has 4 divisors (see below), whose sum is σ = 981240. Its totient is φ = 977256.

The previous prime is 979229. The next prime is 979261. The reversal of 979247 is 742979.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742979 = 311 ⋅2389.

It is a cyclic number.

It is not a de Polignac number, because 979247 - 2¹⁰ = 978223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 979247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329 + ... + 1437.

It is an arithmetic number, because the mean of its divisors is an integer number (245310).

2⁹⁷⁹²⁴⁷ is an apocalyptic number.

979247 is a deficient number, since it is larger than the sum of its proper divisors (1993).

979247 is a wasteful number, since it uses less digits than its factorization.

979247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992.

The product of its digits is 31752, while the sum is 38.

The square root of 979247 is about 989.5690981432. The cubic root of 979247 is about 99.3033919738.

The spelling of 979247 in words is "nine hundred seventy-nine thousand, two hundred forty-seven".