63895428 has 36 divisors (see below), whose sum is σ = 163121868. Its totient is φ = 21086400.

The previous prime is 63895427. The next prime is 63895459. The reversal of 63895428 is 82459836.

63895428 is a `hidden beast` number, since 638 + 9 + 5 + 4 + 2 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54641664 + 9253764 = 7392^2 + 3042^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (63895427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5151 + ... + 12422.

It is an arithmetic number, because the mean of its divisors is an integer number (4531163).

Almost surely, 2^63895428 is an apocalyptic number.

It is an amenable number.

63895428 is an abundant number, since it is smaller than the sum of its proper divisors (99226440).

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

63895428 is a wasteful number, since it uses less digits than its factorization.

63895428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17684 (or 17679 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 63895428 is about 7993.4615780649. The cubic root of 63895428 is about 399.7820229032.

The spelling of 63895428 in words is "sixty-three million, eight hundred ninety-five thousand, four hundred twenty-eight".