63694400 has 252 divisors, whose sum is σ = 201070464. Its totient is φ = 19430400.

The previous prime is 63694399. The next prime is 63694409. The reversal of 63694400 is 449636.

63694400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (63694409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1355177 + ... + 1355223.

Almost surely, 2^63694400 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 63694400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100535232).

63694400 is an abundant number, since it is smaller than the sum of its proper divisors (137376064).

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

63694400 is a wasteful number, since it uses less digits than its factorization.

63694400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 63694400 is about 7980.8771447755. The cubic root of 63694400 is about 399.3623172754.

The spelling of 63694400 in words is "sixty-three million, six hundred ninety-four thousand, four hundred".