6281664 has 28 divisors (see below), whose sum is σ = 16620744. Its totient is φ = 2093824.

The previous prime is 6281663. The next prime is 6281669. The reversal of 6281664 is 4661826.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6281663) 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 3 ways as a sum of consecutive naturals, for example, 16167 + ... + 16550.

It is an arithmetic number, because the mean of its divisors is an integer number (593598).

Almost surely, 2^6281664 is an apocalyptic number.

6281664 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6281664 is an abundant number, since it is smaller than the sum of its proper divisors (10339080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6281664 is a wasteful number, since it uses less digits than its factorization.

6281664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32732 (or 32722 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 6281664 is about 2506.3247993826. The cubic root of 6281664 is about 184.5121208832.

The spelling of 6281664 in words is "six million, two hundred eighty-one thousand, six hundred sixty-four".