6845620 has 12 divisors (see below), whose sum is σ = 14375844. Its totient is φ = 2738240.

The previous prime is 6845609. The next prime is 6845621. The reversal of 6845620 is 265486.

It can be written as a sum of positive squares in 2 ways, for example, as 5134756 + 1710864 = 2266^2 + 1308^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6845621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171121 + ... + 171160.

It is an arithmetic number, because the mean of its divisors is an integer number (1197987).

Almost surely, 2^6845620 is an apocalyptic number.

It is an amenable number.

6845620 is an abundant number, since it is smaller than the sum of its proper divisors (7530224).

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

6845620 is a wasteful number, since it uses less digits than its factorization.

6845620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342290 (or 342288 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 6845620 is about 2616.4135758706. The cubic root of 6845620 is about 189.8763738720.

The spelling of 6845620 in words is "six million, eight hundred forty-five thousand, six hundred twenty".