6647423306 has 8 divisors (see below), whose sum is σ = 10043917380. Its totient is φ = 3299450848.

The previous prime is 6647423303. The next prime is 6647423309. The reversal of 6647423306 is 6033247466.

It is an interprime number because it is at equal distance from previous prime (6647423303) and next prime (6647423309).

It can be written as a sum of positive squares in 2 ways, for example, as 6638175625 + 9247681 = 81475^2 + 3041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6647423303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12130061 + ... + 12130608.

Almost surely, 2^6647423306 is an apocalyptic number.

6647423306 is a deficient number, since it is larger than the sum of its proper divisors (3396494074).

6647423306 is a wasteful number, since it uses less digits than its factorization.

6647423306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24260808.

The product of its (nonzero) digits is 435456, while the sum is 41.

The square root of 6647423306 is about 81531.7318962378. The cubic root of 6647423306 is about 1880.2594430314.

The spelling of 6647423306 in words is "six billion, six hundred forty-seven million, four hundred twenty-three thousand, three hundred six".