63974624 has 48 divisors (see below), whose sum is σ = 145605600. Its totient is φ = 27101184.

The previous prime is 63974597. The next prime is 63974627. The reversal of 63974624 is 42647936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63974627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18332 + ... + 21540.

It is an arithmetic number, because the mean of its divisors is an integer number (3033450).

Almost surely, 2^63974624 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 63974624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72802800).

63974624 is an abundant number, since it is smaller than the sum of its proper divisors (81630976).

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

63974624 is a wasteful number, since it uses less digits than its factorization.

63974624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315 (or 3307 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 63974624 is about 7998.4138427566. The cubic root of 63974624 is about 399.9471263446.

The spelling of 63974624 in words is "sixty-three million, nine hundred seventy-four thousand, six hundred twenty-four".