63605361 has 4 divisors (see below), whose sum is σ = 84807152. Its totient is φ = 42403572.

The previous prime is 63605357. The next prime is 63605383. The reversal of 63605361 is 16350636.

63605361 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 63605361 - 2² = 63605357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63605351) 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, 10600891 + ... + 10600896.

It is an arithmetic number, because the mean of its divisors is an integer number (21201788).

Almost surely, 2^63605361 is an apocalyptic number.

It is an amenable number.

63605361 is a deficient number, since it is larger than the sum of its proper divisors (21201791).

63605361 is a wasteful number, since it uses less digits than its factorization.

63605361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21201790.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 63605361 is about 7975.2969223722. The cubic root of 63605361 is about 399.1761397172.

Adding to 63605361 its reverse (16350636), we get a palindrome (79955997).

The spelling of 63605361 in words is "sixty-three million, six hundred five thousand, three hundred sixty-one".