6638854 has 12 divisors (see below), whose sum is σ = 10316124. Its totient is φ = 3204152.

The previous prime is 6638851. The next prime is 6638893. The reversal of 6638854 is 4588366.

It is a d-powerful number, because it can be written as 6⁵ + 6⁷ + 3¹⁰ + 8³ + 8⁷ + 5³ + 4¹¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6638851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 292 + ... + 3655.

It is an arithmetic number, because the mean of its divisors is an integer number (859677).

Almost surely, 2^6638854 is an apocalyptic number.

6638854 is a deficient number, since it is larger than the sum of its proper divisors (3677270).

6638854 is a wasteful number, since it uses less digits than its factorization.

6638854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007 (or 3978 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 6638854 is about 2576.5973686240. The cubic root of 6638854 is about 187.9451137498.

The spelling of 6638854 in words is "six million, six hundred thirty-eight thousand, eight hundred fifty-four".