9979273 has 2 divisors, whose sum is σ = 9979274. Its totient is φ = 9979272.

The previous prime is 9979271. The next prime is 9979283. The reversal of 9979273 is 3729799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7246864 + 2732409 = 2692^2 + 1653^2 .

It is an emirp because it is prime and its reverse (3729799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9979273 - 2¹ = 9979271 is a prime.

Together with 9979271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9979271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4989636 + 4989637.

It is an arithmetic number, because the mean of its divisors is an integer number (4989637).

Almost surely, 2^9979273 is an apocalyptic number.

It is an amenable number.

9979273 is a deficient number, since it is larger than the sum of its proper divisors (1).

9979273 is an equidigital number, since it uses as much as digits as its factorization.

9979273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 214326, while the sum is 46.

The square root of 9979273 is about 3158.9987337763. The cubic root of 9979273 is about 215.2945161515.

The spelling of 9979273 in words is "nine million, nine hundred seventy-nine thousand, two hundred seventy-three".