6923620 has 36 divisors (see below), whose sum is σ = 15987132. Its totient is φ = 2516800.

The previous prime is 6923593. The next prime is 6923627. The reversal of 6923620 is 263296.

It can be written as a sum of positive squares in 2 ways, for example, as 3175524 + 3748096 = 1782^2 + 1936^2 .

It is not an unprimeable number, because it can be changed into a prime (6923627) 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 11 ways as a sum of consecutive naturals, for example, 990 + ... + 3850.

It is an arithmetic number, because the mean of its divisors is an integer number (444087).

Almost surely, 2^6923620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6923620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7993566).

6923620 is an abundant number, since it is smaller than the sum of its proper divisors (9063512).

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

6923620 is a wasteful number, since it uses less digits than its factorization.

6923620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892 (or 2879 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 6923620 is about 2631.2772563909. The cubic root of 6923620 is about 190.5948118459.

The spelling of 6923620 in words is "six million, nine hundred twenty-three thousand, six hundred twenty".