63820011 has 8 divisors (see below), whose sum is σ = 85130640. Its totient is φ = 42528032.

The previous prime is 63819997. The next prime is 63820019. The reversal of 63820011 is 11002836.

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

It is a cyclic number.

It is not a de Polignac number, because 63820011 - 2¹⁹ = 63295723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63820011.

It is not an unprimeable number, because it can be changed into a prime (63820019) 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, 9301 + ... + 14633.

It is an arithmetic number, because the mean of its divisors is an integer number (10641330).

Almost surely, 2^63820011 is an apocalyptic number.

63820011 is a deficient number, since it is larger than the sum of its proper divisors (21310629).

63820011 is a wasteful number, since it uses less digits than its factorization.

63820011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9325.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 63820011 is about 7988.7427671693. The cubic root of 63820011 is about 399.6246708469.

Adding to 63820011 its reverse (11002836), we get a palindrome (74822847).

The spelling of 63820011 in words is "sixty-three million, eight hundred twenty thousand, eleven".