6654890 has 32 divisors (see below), whose sum is σ = 13219200. Its totient is φ = 2392000.

The previous prime is 6654887. The next prime is 6654913. The reversal of 6654890 is 984566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10811 + ... + 11409.

It is an arithmetic number, because the mean of its divisors is an integer number (413100).

Almost surely, 2^6654890 is an apocalyptic number.

6654890 is a deficient number, since it is larger than the sum of its proper divisors (6564310).

6654890 is a wasteful number, since it uses less digits than its factorization.

6654890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6654890 is about 2579.7073477432. The cubic root of 6654890 is about 188.0963177797.

It can be divided in two parts, 665 and 4890, that added together give a palindrome (5555).

The spelling of 6654890 in words is "six million, six hundred fifty-four thousand, eight hundred ninety".