8399799249 has 8 divisors (see below), whose sum is σ = 11686677312. Its totient is φ = 5356393680.

The previous prime is 8399799241. The next prime is 8399799257. The reversal of 8399799249 is 9429979938.

It is an interprime number because it is at equal distance from previous prime (8399799241) and next prime (8399799257).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8399799249 - 2³ = 8399799241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69), and also a Moran number because the ratio is a prime number: 121736221 = 8399799249 / (8 + 3 + 9 + 9 + 7 + 9 + 9 + 2 + 4 + 9).

It is not an unprimeable number, because it can be changed into a prime (8399799241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60868042 + ... + 60868179.

It is an arithmetic number, because the mean of its divisors is an integer number (1460834664).

Almost surely, 2^8399799249 is an apocalyptic number.

It is an amenable number.

8399799249 is a deficient number, since it is larger than the sum of its proper divisors (3286878063).

8399799249 is a wasteful number, since it uses less digits than its factorization.

8399799249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121736247.

The product of its digits is 79361856, while the sum is 69.

The square root of 8399799249 is about 91650.4187060812. The cubic root of 8399799249 is about 2032.7765196447.

It can be divided in two parts, 8399799 and 249, that added together give a palindrome (8400048).

The spelling of 8399799249 in words is "eight billion, three hundred ninety-nine million, seven hundred ninety-nine thousand, two hundred forty-nine".