63634344 has 64 divisors (see below), whose sum is σ = 170683200. Its totient is φ = 19708416.

The previous prime is 63634331. The next prime is 63634387. The reversal of 63634344 is 44343636.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22852 + ... + 25484.

It is an arithmetic number, because the mean of its divisors is an integer number (2666925).

Almost surely, 2^63634344 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 63634344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85341600).

63634344 is an abundant number, since it is smaller than the sum of its proper divisors (107048856).

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

63634344 is a wasteful number, since it uses less digits than its factorization.

63634344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714 (or 2710 counting only the distinct ones).

The product of its digits is 62208, while the sum is 33.

The square root of 63634344 is about 7977.1137637619. The cubic root of 63634344 is about 399.2367612595.

It can be divided in two parts, 636 and 34344, that added together give a triangular number (34980 = T₂₆₄).

The spelling of 63634344 in words is "sixty-three million, six hundred thirty-four thousand, three hundred forty-four".