63828767 has 4 divisors (see below), whose sum is σ = 64159680. Its totient is φ = 63497856.

The previous prime is 63828701. The next prime is 63828799. The reversal of 63828767 is 76782836.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63828767 - 2¹⁸ = 63566623 is a prime.

It is a super-2 number, since 2×63828767² = 8148222993480578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63828067) 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, 165167 + ... + 165552.

It is an arithmetic number, because the mean of its divisors is an integer number (16039920).

Almost surely, 2^63828767 is an apocalyptic number.

63828767 is a deficient number, since it is larger than the sum of its proper divisors (330913).

63828767 is a wasteful number, since it uses less digits than its factorization.

63828767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330912.

The product of its digits is 677376, while the sum is 47.

The square root of 63828767 is about 7989.2907695239. The cubic root of 63828767 is about 399.6429459592.

The spelling of 63828767 in words is "sixty-three million, eight hundred twenty-eight thousand, seven hundred sixty-seven".