6859885 has 8 divisors (see below), whose sum is σ = 8407296. Its totient is φ = 5370960.

The previous prime is 6859873. The next prime is 6859901. The reversal of 6859885 is 5889586.

6859885 = T₆₄ + T₆₅ + ... + T₃₄₅.

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

It is not a de Polignac number, because 6859885 - 2⁷ = 6859757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14361 + ... + 14830.

It is an arithmetic number, because the mean of its divisors is an integer number (1050912).

Almost surely, 2^6859885 is an apocalyptic number.

It is an amenable number.

6859885 is a deficient number, since it is larger than the sum of its proper divisors (1547411).

6859885 is a wasteful number, since it uses less digits than its factorization.

6859885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29243.

The product of its digits is 691200, while the sum is 49.

The square root of 6859885 is about 2619.1382170477. The cubic root of 6859885 is about 190.0081713937.

Subtracting from 6859885 its reverse (5889586), we obtain a cube (970299 = 99³).

It can be divided in two parts, 6859 and 885, that added together give a square (7744 = 88²).

The spelling of 6859885 in words is "six million, eight hundred fifty-nine thousand, eight hundred eighty-five".