63798811 has 4 divisors (see below), whose sum is σ = 65998800. Its totient is φ = 61598824.

The previous prime is 63798809. The next prime is 63798817. The reversal of 63798811 is 11889736.

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 63798811 - 2¹ = 63798809 is a prime.

It is a super-3 number, since 3×63798811³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63798817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099951 + ... + 1100008.

It is an arithmetic number, because the mean of its divisors is an integer number (16499700).

Almost surely, 2^63798811 is an apocalyptic number.

63798811 is a deficient number, since it is larger than the sum of its proper divisors (2199989).

63798811 is a wasteful number, since it uses less digits than its factorization.

63798811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199988.

The product of its digits is 72576, while the sum is 43.

The square root of 63798811 is about 7987.4157898534. The cubic root of 63798811 is about 399.5804162776.

The spelling of 63798811 in words is "sixty-three million, seven hundred ninety-eight thousand, eight hundred eleven".