63532836 has 72 divisors (see below), whose sum is σ = 167984544. Its totient is φ = 20995200.

The previous prime is 63532813. The next prime is 63532853. The reversal of 63532836 is 63823536.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 63532836.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158236 + ... + 158636.

Almost surely, 2^63532836 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 63532836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83992272).

63532836 is an abundant number, since it is smaller than the sum of its proper divisors (104451708).

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

63532836 is a wasteful number, since it uses less digits than its factorization.

63532836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 569 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 63532836 is about 7970.7487728569. The cubic root of 63532836 is about 399.0243639371.

The spelling of 63532836 in words is "sixty-three million, five hundred thirty-two thousand, eight hundred thirty-six".