63641652 has 12 divisors (see below), whose sum is σ = 148497216. Its totient is φ = 21213880.

The previous prime is 63641639. The next prime is 63641653. The reversal of 63641652 is 25614636.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63641653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651724 + ... + 2651747.

It is an arithmetic number, because the mean of its divisors is an integer number (12374768).

Almost surely, 2^63641652 is an apocalyptic number.

It is an amenable number.

63641652 is an abundant number, since it is smaller than the sum of its proper divisors (84855564).

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

63641652 is a wasteful number, since it uses less digits than its factorization.

63641652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5303478 (or 5303476 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 63641652 is about 7977.5718110212. The cubic root of 63641652 is about 399.2520439427.

The spelling of 63641652 in words is "sixty-three million, six hundred forty-one thousand, six hundred fifty-two".