63890608 has 20 divisors (see below), whose sum is σ = 125181720. Its totient is φ = 31585664.

The previous prime is 63890581. The next prime is 63890609. The reversal of 63890608 is 80609836.

It is not an unprimeable number, because it can be changed into a prime (63890609) 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, 21010 + ... + 23857.

It is an arithmetic number, because the mean of its divisors is an integer number (6259086).

Almost surely, 2^63890608 is an apocalyptic number.

It is an amenable number.

63890608 is a deficient number, since it is larger than the sum of its proper divisors (61291112).

63890608 is a wasteful number, since it uses less digits than its factorization.

63890608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44964 (or 44958 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 63890608 is about 7993.1600759649. The cubic root of 63890608 is about 399.7719700305.

The spelling of 63890608 in words is "sixty-three million, eight hundred ninety thousand, six hundred eight".