6866623 has 8 divisors (see below), whose sum is σ = 7374240. Its totient is φ = 6370560.

The previous prime is 6866621. The next prime is 6866633. The reversal of 6866623 is 3266686.

6866623 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6866623 - 2¹ = 6866621 is a prime.

It is a super-2 number, since 2×6866623² = 94301022848258, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6866621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1638 + ... + 4051.

It is an arithmetic number, because the mean of its divisors is an integer number (921780).

Almost surely, 2^6866623 is an apocalyptic number.

6866623 is a deficient number, since it is larger than the sum of its proper divisors (507617).

6866623 is a wasteful number, since it uses less digits than its factorization.

6866623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5777.

The product of its digits is 62208, while the sum is 37.

The square root of 6866623 is about 2620.4242023001. The cubic root of 6866623 is about 190.0703617517.

The spelling of 6866623 in words is "six million, eight hundred sixty-six thousand, six hundred twenty-three".