6849820 has 24 divisors (see below), whose sum is σ = 14531328. Its totient is φ = 2712000.

The previous prime is 6849797. The next prime is 6849851. The reversal of 6849820 is 289486.

It is a self number, because there is not a number n which added to its sum of digits gives 6849820.

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, 325 + ... + 3715.

It is an arithmetic number, because the mean of its divisors is an integer number (605472).

Almost surely, 2^6849820 is an apocalyptic number.

It is an amenable number.

6849820 is an abundant number, since it is smaller than the sum of its proper divisors (7681508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6849820 is a wasteful number, since it uses less digits than its factorization.

6849820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501 (or 3499 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 6849820 is about 2617.2160782022. The cubic root of 6849820 is about 189.9151976130.

The spelling of 6849820 in words is "six million, eight hundred forty-nine thousand, eight hundred twenty".