63065621 has 8 divisors (see below), whose sum is σ = 64341120. Its totient is φ = 61802208.

The previous prime is 63065581. The next prime is 63065623. The reversal of 63065621 is 12656036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63065621 - 2⁶ = 63065557 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 (63065623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7910 + ... + 13736.

It is an arithmetic number, because the mean of its divisors is an integer number (8042640).

Almost surely, 2^63065621 is an apocalyptic number.

It is an amenable number.

63065621 is a deficient number, since it is larger than the sum of its proper divisors (1275499).

63065621 is a wasteful number, since it uses less digits than its factorization.

63065621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 63065621 is about 7941.3865917735. The cubic root of 63065621 is about 398.0438261377.

The spelling of 63065621 in words is "sixty-three million, sixty-five thousand, six hundred twenty-one".