63141728 has 24 divisors (see below), whose sum is σ = 133873488. Its totient is φ = 29142144.

The previous prime is 63141719. The next prime is 63141737. The reversal of 63141728 is 82714136.

It is an interprime number because it is at equal distance from previous prime (63141719) and next prime (63141737).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 63141694 and 63141703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75476 + ... + 76307.

It is an arithmetic number, because the mean of its divisors is an integer number (5578062).

Almost surely, 2^63141728 is an apocalyptic number.

It is an amenable number.

63141728 is an abundant number, since it is smaller than the sum of its proper divisors (70731760).

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

63141728 is a wasteful number, since it uses less digits than its factorization.

63141728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151806 (or 151798 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 63141728 is about 7946.1769424044. The cubic root of 63141728 is about 398.2038802899.

The spelling of 63141728 in words is "sixty-three million, one hundred forty-one thousand, seven hundred twenty-eight".