6463646 has 8 divisors (see below), whose sum is σ = 11080560. Its totient is φ = 2770128.

The previous prime is 6463643. The next prime is 6463649.

6463646 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (6463643) and next prime (6463649).

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

It is a super-2 number, since 2×6463646² = 83557439226632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463643) 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, 230831 + ... + 230858.

It is an arithmetic number, because the mean of its divisors is an integer number (1385070).

Almost surely, 2^6463646 is an apocalyptic number.

6463646 is a deficient number, since it is larger than the sum of its proper divisors (4616914).

6463646 is a wasteful number, since it uses less digits than its factorization.

6463646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461698.

The product of its digits is 62208, while the sum is 35.

The square root of 6463646 is about 2542.3701540098. The cubic root of 6463646 is about 186.2769797110.

The spelling of 6463646 in words is "six million, four hundred sixty-three thousand, six hundred forty-six".