63676844 has 48 divisors (see below), whose sum is σ = 140743680. Its totient is φ = 24485760.

The previous prime is 63676831. The next prime is 63676859. The reversal of 63676844 is 44867636.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 63676795 and 63676804.

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, 23024 + ... + 25640.

It is an arithmetic number, because the mean of its divisors is an integer number (2932160).

Almost surely, 2^63676844 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 63676844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70371840).

63676844 is an abundant number, since it is smaller than the sum of its proper divisors (77066836).

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

63676844 is a wasteful number, since it uses less digits than its factorization.

63676844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718 (or 2716 counting only the distinct ones).

The product of its digits is 580608, while the sum is 44.

The square root of 63676844 is about 7979.7771898719. Note that the first 3 decimals coincide. The cubic root of 63676844 is about 399.3256220081.

The spelling of 63676844 in words is "sixty-three million, six hundred seventy-six thousand, eight hundred forty-four".