9923279 has 2 divisors, whose sum is σ = 9923280. Its totient is φ = 9923278.

The previous prime is 9923273. The next prime is 9923299. The reversal of 9923279 is 9723299.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9923279 - 2¹² = 9919183 is a prime.

It is a super-2 number, since 2×9923279² = 196942932223682, which contains 22 as substring.

It is a Chen prime.

It is equal to p₆₅₉₈₆₇ and since 9923279 and 659867 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9923273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4961639 + 4961640.

It is an arithmetic number, because the mean of its divisors is an integer number (4961640).

Almost surely, 2^9923279 is an apocalyptic number.

9923279 is a deficient number, since it is larger than the sum of its proper divisors (1).

9923279 is an equidigital number, since it uses as much as digits as its factorization.

9923279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The square root of 9923279 is about 3150.1236483668. The cubic root of 9923279 is about 214.8910859934.

The spelling of 9923279 in words is "nine million, nine hundred twenty-three thousand, two hundred seventy-nine".