63289920 has 56 divisors (see below), whose sum is σ = 200948544. Its totient is φ = 16877056.

The previous prime is 63289909. The next prime is 63289921. The reversal of 63289920 is 2998236.

It is a super-2 number, since 2×63289920² = 8011227947212800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (63289921) 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, 32004 + ... + 33923.

Almost surely, 2^63289920 is an apocalyptic number.

63289920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63289920 is an abundant number, since it is smaller than the sum of its proper divisors (137658624).

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

63289920 is a wasteful number, since it uses less digits than its factorization.

63289920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65947 (or 65937 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 63289920 is about 7955.4962133106. The cubic root of 63289920 is about 398.5151616243.

The spelling of 63289920 in words is "sixty-three million, two hundred eighty-nine thousand, nine hundred twenty".