63646104 has 64 divisors (see below), whose sum is σ = 165473280. Its totient is φ = 20384000.

The previous prime is 63646103. The next prime is 63646111. The reversal of 63646104 is 40164636.

63646104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63646103) 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 15 ways as a sum of consecutive naturals, for example, 69409 + ... + 70319.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^63646104 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 63646104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82736640).

63646104 is an abundant number, since it is smaller than the sum of its proper divisors (101827176).

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

63646104 is a wasteful number, since it uses less digits than its factorization.

With its successor (63646105) it forms an eRAP, since the sums of their prime factors are consecutive (1032 and 1033).

63646104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 63646104 is about 7977.8508384151. The cubic root of 63646104 is about 399.2613535097.

The spelling of 63646104 in words is "sixty-three million, six hundred forty-six thousand, one hundred four".