63654012 has 60 divisors (see below), whose sum is σ = 167340096. Its totient is φ = 21098880.

The previous prime is 63653987. The next prime is 63654053. The reversal of 63654012 is 21045636.

63654012 is a `hidden beast` number, since 6 + 3 + 654 + 0 + 1 + 2 = 666.

It is a super-2 number, since 2×63654012² = 8103666487392288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 71812 + ... + 72692.

Almost surely, 2^63654012 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 63654012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83670048).

63654012 is an abundant number, since it is smaller than the sum of its proper divisors (103686084).

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

63654012 is a wasteful number, since it uses less digits than its factorization.

63654012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 63654012 is about 7978.3464452228. The cubic root of 63654012 is about 399.2778888398.

Adding to 63654012 its reverse (21045636), we get a palindrome (84699648).

The spelling of 63654012 in words is "sixty-three million, six hundred fifty-four thousand, twelve".