7994279 has 2 divisors, whose sum is σ = 7994280. Its totient is φ = 7994278.

The previous prime is 7994263. The next prime is 7994281. The reversal of 7994279 is 9724997.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7994279 - 2⁴ = 7994263 is a prime.

Together with 7994281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7994299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3997139 + 3997140.

It is an arithmetic number, because the mean of its divisors is an integer number (3997140).

Almost surely, 2^7994279 is an apocalyptic number.

7994279 is a deficient number, since it is larger than the sum of its proper divisors (1).

7994279 is an equidigital number, since it uses as much as digits as its factorization.

7994279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The square root of 7994279 is about 2827.4156043992. The cubic root of 7994279 is about 199.9523136310.

The spelling of 7994279 in words is "seven million, nine hundred ninety-four thousand, two hundred seventy-nine".