63799680 has 256 divisors, whose sum is σ = 239708160. Its totient is φ = 14131200.

The previous prime is 63799679. The next prime is 63799787. The reversal of 63799680 is 8699736.

63799680 = 266² + 267² + ... + 594².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 631630 + ... + 631730.

It is an arithmetic number, because the mean of its divisors is an integer number (936360).

Almost surely, 2^63799680 is an apocalyptic number.

63799680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63799680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119854080).

63799680 is an abundant number, since it is smaller than the sum of its proper divisors (175908480).

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

63799680 is a wasteful number, since it uses less digits than its factorization.

63799680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 63799680 is about 7987.4701877378. The cubic root of 63799680 is about 399.5822304902.

The spelling of 63799680 in words is "sixty-three million, seven hundred ninety-nine thousand, six hundred eighty".