6423616 has 28 divisors (see below), whose sum is σ = 13190220. Its totient is φ = 3100160.

The previous prime is 6423611. The next prime is 6423623. The reversal of 6423616 is 6163246.

It can be written as a sum of positive squares in 2 ways, for example, as 2262016 + 4161600 = 1504^2 + 2040^2 .

6423616 is a modest number, since divided by 23616 gives 64 as remainder.

It is not an unprimeable number, because it can be changed into a prime (6423611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126 + ... + 3586.

Almost surely, 2^6423616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6423616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6595110).

6423616 is an abundant number, since it is smaller than the sum of its proper divisors (6766604).

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

6423616 is a wasteful number, since it uses less digits than its factorization.

6423616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502 (or 3492 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 6423616 is about 2534.4853520981. The cubic root of 6423616 is about 185.8916391991.

The spelling of 6423616 in words is "six million, four hundred twenty-three thousand, six hundred sixteen".