6856099 has 4 divisors (see below), whose sum is σ = 6894160. Its totient is φ = 6818040.

The previous prime is 6856079. The next prime is 6856103. The reversal of 6856099 is 9906586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9906586 = 2 ⋅4953293.

It is a cyclic number.

It is not a de Polignac number, because 6856099 - 2⁷ = 6855971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6856009) 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, 18759 + ... + 19120.

It is an arithmetic number, because the mean of its divisors is an integer number (1723540).

Almost surely, 2^6856099 is an apocalyptic number.

6856099 is a deficient number, since it is larger than the sum of its proper divisors (38061).

6856099 is a wasteful number, since it uses less digits than its factorization.

6856099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38060.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 6856099 is about 2618.4153604805. The cubic root of 6856099 is about 189.9732095191.

The spelling of 6856099 in words is "six million, eight hundred fifty-six thousand, ninety-nine".