7798799 has 2 divisors, whose sum is σ = 7798800. Its totient is φ = 7798798.

The previous prime is 7798793. The next prime is 7798807. The reversal of 7798799 is 9978977.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7798799 - 2⁴ = 7798783 is a 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 (7798793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3899399 + 3899400.

It is an arithmetic number, because the mean of its divisors is an integer number (3899400).

Almost surely, 2^7798799 is an apocalyptic number.

7798799 is a deficient number, since it is larger than the sum of its proper divisors (1).

7798799 is an equidigital number, since it uses as much as digits as its factorization.

7798799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2000376, while the sum is 56.

The square root of 7798799 is about 2792.6329869856. The cubic root of 7798799 is about 198.3090690526.

The spelling of 7798799 in words is "seven million, seven hundred ninety-eight thousand, seven hundred ninety-nine".