9971479 has 4 divisors (see below), whose sum is σ = 11395984. Its totient is φ = 8546976.

The previous prime is 9971461. The next prime is 9971483. The reversal of 9971479 is 9741799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9741799 = 17 ⋅573047.

It is a cyclic number.

It is not a de Polignac number, because 9971479 - 2¹¹ = 9969431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9971179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712242 + ... + 712255.

It is an arithmetic number, because the mean of its divisors is an integer number (2848996).

Almost surely, 2^9971479 is an apocalyptic number.

9971479 is a deficient number, since it is larger than the sum of its proper divisors (1424505).

9971479 is a wasteful number, since it uses less digits than its factorization.

9971479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424504.

The product of its digits is 142884, while the sum is 46.

The square root of 9971479 is about 3157.7648740842. The cubic root of 9971479 is about 215.2384518637.

The spelling of 9971479 in words is "nine million, nine hundred seventy-one thousand, four hundred seventy-nine".