6654891 has 8 divisors (see below), whose sum is σ = 9179280. Its totient is φ = 4283552.

The previous prime is 6654887. The next prime is 6654913. The reversal of 6654891 is 1984566.

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 6654891 - 2² = 6654887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6654821) 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 in 7 ways as a sum of consecutive naturals, for example, 38160 + ... + 38333.

It is an arithmetic number, because the mean of its divisors is an integer number (1147410).

Almost surely, 2^6654891 is an apocalyptic number.

6654891 is a deficient number, since it is larger than the sum of its proper divisors (2524389).

6654891 is a wasteful number, since it uses less digits than its factorization.

6654891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76525.

The product of its digits is 51840, while the sum is 39.

The square root of 6654891 is about 2579.7075415636. The cubic root of 6654891 is about 188.0963272011.

The spelling of 6654891 in words is "six million, six hundred fifty-four thousand, eight hundred ninety-one".