63730408 has 64 divisors (see below), whose sum is σ = 145584000. Its totient is φ = 25546752.

The previous prime is 63730379. The next prime is 63730411. The reversal of 63730408 is 80403736.

It is a self number, because there is not a number n which added to its sum of digits gives 63730408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94360 + ... + 95032.

It is an arithmetic number, because the mean of its divisors is an integer number (2274750).

Almost surely, 2^63730408 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 63730408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72792000).

63730408 is an abundant number, since it is smaller than the sum of its proper divisors (81853592).

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

63730408 is a wasteful number, since it uses less digits than its factorization.

63730408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 63730408 is about 7983.1327184258. The cubic root of 63730408 is about 399.4375595224.

The spelling of 63730408 in words is "sixty-three million, seven hundred thirty thousand, four hundred eight".