8399849 has 4 divisors (see below), whose sum is σ = 8501136. Its totient is φ = 8298564.

The previous prime is 8399837. The next prime is 8399861. The reversal of 8399849 is 9489938.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (8399837) and next prime (8399861).

It is a cyclic number.

It is not a de Polignac number, because 8399849 - 2⁸ = 8399593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8399797 and 8399806.

It is not an unprimeable number, because it can be changed into a prime (8393849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50519 + ... + 50684.

It is an arithmetic number, because the mean of its divisors is an integer number (2125284).

Almost surely, 2^8399849 is an apocalyptic number.

It is an amenable number.

8399849 is a deficient number, since it is larger than the sum of its proper divisors (101287).

8399849 is a wasteful number, since it uses less digits than its factorization.

8399849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101286.

The product of its digits is 559872, while the sum is 50.

The square root of 8399849 is about 2898.2492991460. The cubic root of 8399849 is about 203.2780532934.

The spelling of 8399849 in words is "eight million, three hundred ninety-nine thousand, eight hundred forty-nine".