6866546 has 4 divisors (see below), whose sum is σ = 10299822. Its totient is φ = 3433272.

The previous prime is 6866513. The next prime is 6866549. The reversal of 6866546 is 6456686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6456686 = 2 ⋅3228343.

It can be written as a sum of positive squares in only one way, i.e., 6076225 + 790321 = 2465^2 + 889^2 .

It is not an unprimeable number, because it can be changed into a prime (6866549) 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 as a sum of consecutive naturals, namely, 1716635 + ... + 1716638.

Almost surely, 2^6866546 is an apocalyptic number.

6866546 is a deficient number, since it is larger than the sum of its proper divisors (3433276).

6866546 is a wasteful number, since it uses less digits than its factorization.

6866546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433275.

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

The square root of 6866546 is about 2620.4095099812. The cubic root of 6866546 is about 190.0696512874.

The spelling of 6866546 in words is "six million, eight hundred sixty-six thousand, five hundred forty-six".