6654889 has 4 divisors (see below), whose sum is σ = 6944256. Its totient is φ = 6365524.

The previous prime is 6654887. The next prime is 6654913. The reversal of 6654889 is 9884566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9884566 = 2 ⋅4942283.

It is a cyclic number.

It is not a de Polignac number, because 6654889 - 2¹ = 6654887 is a prime.

It is an Ulam number.

It is a Duffinian number.

6654889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6654887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144649 + ... + 144694.

It is an arithmetic number, because the mean of its divisors is an integer number (1736064).

Almost surely, 2^6654889 is an apocalyptic number.

It is an amenable number.

6654889 is a deficient number, since it is larger than the sum of its proper divisors (289367).

6654889 is a wasteful number, since it uses less digits than its factorization.

6654889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289366.

The product of its digits is 414720, while the sum is 46.

The square root of 6654889 is about 2579.7071539227. The cubic root of 6654889 is about 188.0963083582.

The spelling of 6654889 in words is "six million, six hundred fifty-four thousand, eight hundred eighty-nine".