63632641 has 4 divisors (see below), whose sum is σ = 65826900. Its totient is φ = 61438384.

The previous prime is 63632633. The next prime is 63632669. The reversal of 63632641 is 14623636.

63632641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 47059600 = 4071^2 + 6860^2 .

It is a cyclic number.

It is not a de Polignac number, because 63632641 - 2³ = 63632633 is a prime.

It is a super-2 number, since 2×63632641² = 8098226001269762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63632141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097086 + ... + 1097143.

It is an arithmetic number, because the mean of its divisors is an integer number (16456725).

Almost surely, 2^63632641 is an apocalyptic number.

It is an amenable number.

63632641 is a deficient number, since it is larger than the sum of its proper divisors (2194259).

63632641 is a wasteful number, since it uses less digits than its factorization.

63632641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194258.

The product of its digits is 15552, while the sum is 31.

The square root of 63632641 is about 7977.0070201799. The cubic root of 63632641 is about 399.2331997327.

The spelling of 63632641 in words is "sixty-three million, six hundred thirty-two thousand, six hundred forty-one".