63678080 has 32 divisors (see below), whose sum is σ = 152231940. Its totient is φ = 25470976.

The previous prime is 63678079. The next prime is 63678103. The reversal of 63678080 is 8087636.

It can be written as a sum of positive squares in 2 ways, for example, as 63616576 + 61504 = 7976^2 + 248^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×63678080³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49109 + ... + 50388.

Almost surely, 2^63678080 is an apocalyptic number.

It is an amenable number.

63678080 is an abundant number, since it is smaller than the sum of its proper divisors (88553860).

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

63678080 is an equidigital number, since it uses as much as digits as its factorization.

63678080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99516 (or 99504 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 63678080 is about 7979.8546352675. The cubic root of 63678080 is about 399.3282056960.

The spelling of 63678080 in words is "sixty-three million, six hundred seventy-eight thousand, eighty".