8138799 has 12 divisors (see below), whose sum is σ = 12191816. Its totient is φ = 5425704.

The previous prime is 8138789. The next prime is 8138807. The reversal of 8138799 is 9978318.

It is not a de Polignac number, because 8138799 - 2⁷ = 8138671 is a prime.

It is a super-3 number, since 3×8138799³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16504 + ... + 16989.

Almost surely, 2^8138799 is an apocalyptic number.

8138799 is a deficient number, since it is larger than the sum of its proper divisors (4053017).

8138799 is an equidigital number, since it uses as much as digits as its factorization.

8138799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33508 (or 33496 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 8138799 is about 2852.8580406322. The cubic root of 8138799 is about 201.1500327813.

The spelling of 8138799 in words is "eight million, one hundred thirty-eight thousand, seven hundred ninety-nine".