63628517 has 4 divisors (see below), whose sum is σ = 64019040. Its totient is φ = 63237996.

The previous prime is 63628507. The next prime is 63628529. The reversal of 63628517 is 71582636.

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 a cyclic number.

It is not a de Polignac number, because 63628517 - 2¹⁰ = 63627493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63628507) 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, 195017 + ... + 195342.

It is an arithmetic number, because the mean of its divisors is an integer number (16004760).

Almost surely, 2^63628517 is an apocalyptic number.

It is an amenable number.

63628517 is a deficient number, since it is larger than the sum of its proper divisors (390523).

63628517 is a wasteful number, since it uses less digits than its factorization.

63628517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390522.

The product of its digits is 60480, while the sum is 38.

The square root of 63628517 is about 7976.7485230512. The cubic root of 63628517 is about 399.2245748443.

The spelling of 63628517 in words is "sixty-three million, six hundred twenty-eight thousand, five hundred seventeen".