6649454 has 16 divisors (see below), whose sum is σ = 11458176. Its totient is φ = 2835000.

The previous prime is 6649453. The next prime is 6649481. The reversal of 6649454 is 4549466.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6649453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1829 + ... + 4079.

It is an arithmetic number, because the mean of its divisors is an integer number (716136).

Almost surely, 2^6649454 is an apocalyptic number.

6649454 is a deficient number, since it is larger than the sum of its proper divisors (4808722).

6649454 is a wasteful number, since it uses less digits than its factorization.

6649454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471.

The product of its digits is 103680, while the sum is 38.

The square root of 6649454 is about 2578.6535246132. The cubic root of 6649454 is about 188.0450887779.

The spelling of 6649454 in words is "six million, six hundred forty-nine thousand, four hundred fifty-four".