979947 has 6 divisors (see below), whose sum is σ = 1415492. Its totient is φ = 653292.

The previous prime is 979921. The next prime is 979949. The reversal of 979947 is 749979.

979947 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 979947 - 2⁶ = 979883 is a prime.

It is a super-3 number, since 3×979947³ = 2823117913974933369, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54433 + ... + 54450.

2⁹⁷⁹⁹⁴⁷ is an apocalyptic number.

979947 is a deficient number, since it is larger than the sum of its proper divisors (435545).

979947 is a wasteful number, since it uses less digits than its factorization.

979947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108889 (or 108886 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 979947 is about 989.9227242568. The cubic root of 979947 is about 99.3270481837.

The spelling of 979947 in words is "nine hundred seventy-nine thousand, nine hundred forty-seven".