63828669 has 8 divisors (see below), whose sum is σ = 85406752. Its totient is φ = 42401520.

The previous prime is 63828649. The next prime is 63828671. The reversal of 63828669 is 96682836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63828669 - 2⁵ = 63828637 is a prime.

It is a super-2 number, since 2×63828669² = 8148197972623122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63828649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36742 + ... + 38439.

It is an arithmetic number, because the mean of its divisors is an integer number (10675844).

Almost surely, 2^63828669 is an apocalyptic number.

It is an amenable number.

63828669 is a deficient number, since it is larger than the sum of its proper divisors (21578083).

63828669 is a wasteful number, since it uses less digits than its factorization.

63828669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75467.

The product of its digits is 746496, while the sum is 48.

The square root of 63828669 is about 7989.2846363113. The cubic root of 63828669 is about 399.6427414274.

It can be divided in two parts, 6382 and 8669, that added together give a palindrome (15051).

The spelling of 63828669 in words is "sixty-three million, eight hundred twenty-eight thousand, six hundred sixty-nine".