63840088 has 48 divisors (see below), whose sum is σ = 135317520. Its totient is φ = 28169856.

The previous prime is 63840071. The next prime is 63840089. The reversal of 63840088 is 88004836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63840089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30070 + ... + 32122.

It is an arithmetic number, because the mean of its divisors is an integer number (2819115).

Almost surely, 2^63840088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63840088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67658760).

63840088 is an abundant number, since it is smaller than the sum of its proper divisors (71477432).

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

63840088 is a wasteful number, since it uses less digits than its factorization.

63840088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108 (or 2091 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 63840088 is about 7989.9992490613. Note that the first 3 decimals coincide. The cubic root of 63840088 is about 399.6665721419. Note that the first 3 decimals are identical.

The spelling of 63840088 in words is "sixty-three million, eight hundred forty thousand, eighty-eight".