6923556 has 72 divisors (see below), whose sum is σ = 19262880. Its totient is φ = 2166912.

The previous prime is 6923537. The next prime is 6923563. The reversal of 6923556 is 6553296.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6923556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16315 + ... + 16733.

It is an arithmetic number, because the mean of its divisors is an integer number (267540).

Almost surely, 2^6923556 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 6923556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9631440).

6923556 is an abundant number, since it is smaller than the sum of its proper divisors (12339324).

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

6923556 is a wasteful number, since it uses less digits than its factorization.

6923556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 441 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 6923556 is about 2631.2650949686. The cubic root of 6923556 is about 190.5942245758.

The spelling of 6923556 in words is "six million, nine hundred twenty-three thousand, five hundred fifty-six".