63948720 has 80 divisors (see below), whose sum is σ = 216271872. Its totient is φ = 15502080.

The previous prime is 63948719. The next prime is 63948739. The reversal of 63948720 is 2784936.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9472 + ... + 14751.

Almost surely, 2^63948720 is an apocalyptic number.

63948720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63948720 is an abundant number, since it is smaller than the sum of its proper divisors (152323152).

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

63948720 is a wasteful number, since it uses less digits than its factorization.

63948720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24250 (or 24244 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 63948720 is about 7996.7943577411. The cubic root of 63948720 is about 399.8931381206.

The spelling of 63948720 in words is "sixty-three million, nine hundred forty-eight thousand, seven hundred twenty".