63848640 has 56 divisors (see below), whose sum is σ = 202722480. Its totient is φ = 17026048.

The previous prime is 63848579. The next prime is 63848641. The reversal of 63848640 is 4684836.

It is not an unprimeable number, because it can be changed into a prime (63848641) 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, 32295 + ... + 34214.

Almost surely, 2^63848640 is an apocalyptic number.

63848640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63848640 is an abundant number, since it is smaller than the sum of its proper divisors (138873840).

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

63848640 is a wasteful number, since it uses less digits than its factorization.

63848640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66529 (or 66519 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 63848640 is about 7990.5344001512. The cubic root of 63848640 is about 399.6844177518.

The spelling of 63848640 in words is "sixty-three million, eight hundred forty-eight thousand, six hundred forty".