63221064 has 32 divisors (see below), whose sum is σ = 158397120. Its totient is φ = 21027776.

The previous prime is 63221047. The next prime is 63221099. The reversal of 63221064 is 46012236.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9454 + ... + 14690.

It is an arithmetic number, because the mean of its divisors is an integer number (4949910).

Almost surely, 2^63221064 is an apocalyptic number.

It is an amenable number.

63221064 is an abundant number, since it is smaller than the sum of its proper divisors (95176056).

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

63221064 is a wasteful number, since it uses less digits than its factorization.

63221064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749 (or 5745 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 63221064 is about 7951.1674614487. The cubic root of 63221064 is about 398.3705882224.

The spelling of 63221064 in words is "sixty-three million, two hundred twenty-one thousand, sixty-four".