63828641 has 4 divisors (see below), whose sum is σ = 65313072. Its totient is φ = 62344212.

The previous prime is 63828637. The next prime is 63828643. The reversal of 63828641 is 14682836.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63828641 - 2² = 63828637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63828595 and 63828604.

It is not an unprimeable number, because it can be changed into a prime (63828643) 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, 742151 + ... + 742236.

It is an arithmetic number, because the mean of its divisors is an integer number (16328268).

Almost surely, 2^63828641 is an apocalyptic number.

It is an amenable number.

63828641 is a deficient number, since it is larger than the sum of its proper divisors (1484431).

63828641 is a wasteful number, since it uses less digits than its factorization.

63828641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484430.

The product of its digits is 55296, while the sum is 38.

The square root of 63828641 is about 7989.2828839640. The cubic root of 63828641 is about 399.6426829898.

The spelling of 63828641 in words is "sixty-three million, eight hundred twenty-eight thousand, six hundred forty-one".