63974544 has 20 divisors (see below), whose sum is σ = 165267696. Its totient is φ = 21324832.

The previous prime is 63974513. The next prime is 63974549. The reversal of 63974544 is 44547936.

It is a junction number, because it is equal to n+sod(n) for n = 63974496 and 63974505.

It is not an unprimeable number, because it can be changed into a prime (63974549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666354 + ... + 666449.

Almost surely, 2^63974544 is an apocalyptic number.

It is an amenable number.

63974544 is an abundant number, since it is smaller than the sum of its proper divisors (101293152).

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

63974544 is a wasteful number, since it uses less digits than its factorization.

63974544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332814 (or 1332808 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 63974544 is about 7998.4088417635. The cubic root of 63974544 is about 399.9469596338.

The spelling of 63974544 in words is "sixty-three million, nine hundred seventy-four thousand, five hundred forty-four".