63428712 has 16 divisors (see below), whose sum is σ = 158571840. Its totient is φ = 21142896.

The previous prime is 63428711. The next prime is 63428719. The reversal of 63428712 is 21782436.

It is not an unprimeable number, because it can be changed into a prime (63428711) 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, 1321408 + ... + 1321455.

It is an arithmetic number, because the mean of its divisors is an integer number (9910740).

Almost surely, 2^63428712 is an apocalyptic number.

It is an amenable number.

63428712 is an abundant number, since it is smaller than the sum of its proper divisors (95143128).

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

63428712 is a wasteful number, since it uses less digits than its factorization.

63428712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642872 (or 2642868 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 63428712 is about 7964.2144622053. The cubic root of 63428712 is about 398.8062576587.

The spelling of 63428712 in words is "sixty-three million, four hundred twenty-eight thousand, seven hundred twelve".