7875799 has 2 divisors, whose sum is σ = 7875800. Its totient is φ = 7875798.

The previous prime is 7875797. The next prime is 7875827. The reversal of 7875799 is 9975787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7875799 - 2¹ = 7875797 is a prime.

Together with 7875797, it forms a pair of twin primes.

7875799 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7875793) 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, 3937899 + 3937900.

It is an arithmetic number, because the mean of its divisors is an integer number (3937900).

Almost surely, 2^7875799 is an apocalyptic number.

7875799 is a deficient number, since it is larger than the sum of its proper divisors (1).

7875799 is an equidigital number, since it uses as much as digits as its factorization.

7875799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1111320, while the sum is 52.

The square root of 7875799 is about 2806.3853976245. The cubic root of 7875799 is about 198.9595887741.

The spelling of 7875799 in words is "seven million, eight hundred seventy-five thousand, seven hundred ninety-nine".