6463666 has 8 divisors (see below), whose sum is σ = 10576944. Its totient is φ = 2938020.

The previous prime is 6463661. The next prime is 6463669. The reversal of 6463666 is 6663646.

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 (6463661) 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, 146880 + ... + 146923.

It is an arithmetic number, because the mean of its divisors is an integer number (1322118).

Almost surely, 2^6463666 is an apocalyptic number.

6463666 is a deficient number, since it is larger than the sum of its proper divisors (4113278).

6463666 is a wasteful number, since it uses less digits than its factorization.

6463666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293816.

The product of its digits is 93312, while the sum is 37.

The square root of 6463666 is about 2542.3740873443. The cubic root of 6463666 is about 186.2771718386.

The spelling of 6463666 in words is "six million, four hundred sixty-three thousand, six hundred sixty-six".