63428672 has 14 divisors (see below), whose sum is σ = 125866398. Its totient is φ = 31714304.

The previous prime is 63428657. The next prime is 63428711. The reversal of 63428672 is 27682436.

It can be written as a sum of positive squares in only one way, i.e., 50353216 + 13075456 = 7096^2 + 3616^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495473 + ... + 495600.

It is an arithmetic number, because the mean of its divisors is an integer number (8990457).

Almost surely, 2^63428672 is an apocalyptic number.

It is an amenable number.

63428672 is a deficient number, since it is larger than the sum of its proper divisors (62437726).

63428672 is an equidigital number, since it uses as much as digits as its factorization.

63428672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991085 (or 991075 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 63428672 is about 7964.2119509717. The cubic root of 63428672 is about 398.8061738257.

The spelling of 63428672 in words is "sixty-three million, four hundred twenty-eight thousand, six hundred seventy-two".