63704064 has 88 divisors (see below), whose sum is σ = 172439280. Its totient is φ = 20905984.

The previous prime is 63704057. The next prime is 63704143. The reversal of 63704064 is 46040736.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273292 + ... + 273524.

Almost surely, 2^63704064 is an apocalyptic number.

63704064 is a gapful number since it is divisible by the number (64) 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 63704064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86219640).

63704064 is an abundant number, since it is smaller than the sum of its proper divisors (108735216).

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

63704064 is a wasteful number, since it uses less digits than its factorization.

63704064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 63704064 is about 7981.4825690469. The cubic root of 63704064 is about 399.3825139346.

The spelling of 63704064 in words is "sixty-three million, seven hundred four thousand, sixty-four".