6866654 has 4 divisors (see below), whose sum is σ = 10299984. Its totient is φ = 3433326.

The previous prime is 6866647. The next prime is 6866659. The reversal of 6866654 is 4566686.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6866659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1716662 + ... + 1716665.

It is an arithmetic number, because the mean of its divisors is an integer number (2574996).

Almost surely, 2^6866654 is an apocalyptic number.

6866654 is a deficient number, since it is larger than the sum of its proper divisors (3433330).

6866654 is a wasteful number, since it uses less digits than its factorization.

6866654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433329.

The product of its digits is 207360, while the sum is 41.

The square root of 6866654 is about 2620.4301173662. The cubic root of 6866654 is about 190.0706477813.

Subtracting from 6866654 its reverse (4566686), we obtain a cube (2299968 = 132³).

The spelling of 6866654 in words is "six million, eight hundred sixty-six thousand, six hundred fifty-four".