63799280 has 80 divisors (see below), whose sum is σ = 155240064. Its totient is φ = 24360960.

The previous prime is 63799279. The next prime is 63799289. The reversal of 63799280 is 8299736.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63799289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173657 + ... + 174023.

Almost surely, 2^63799280 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 63799280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77620032).

63799280 is an abundant number, since it is smaller than the sum of its proper divisors (91440784).

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

63799280 is a wasteful number, since it uses less digits than its factorization.

63799280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 63799280 is about 7987.4451484815. The cubic root of 63799280 is about 399.5813954116.

The spelling of 63799280 in words is "sixty-three million, seven hundred ninety-nine thousand, two hundred eighty".