7942799 has 2 divisors, whose sum is σ = 7942800. Its totient is φ = 7942798.

The previous prime is 7942769. The next prime is 7942819. The reversal of 7942799 is 9972497.

It is a strong prime.

It is an emirp because it is prime and its reverse (9972497) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7942799 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7942729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3971399 + 3971400.

It is an arithmetic number, because the mean of its divisors is an integer number (3971400).

Almost surely, 2^7942799 is an apocalyptic number.

7942799 is a deficient number, since it is larger than the sum of its proper divisors (1).

7942799 is an equidigital number, since it uses as much as digits as its factorization.

7942799 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 7942799 is about 2818.2971809233. The cubic root of 7942799 is about 199.5221843702.

The spelling of 7942799 in words is "seven million, nine hundred forty-two thousand, seven hundred ninety-nine".