63679911 has 16 divisors (see below), whose sum is σ = 88149600. Its totient is φ = 40842368.

The previous prime is 63679901. The next prime is 63679919. The reversal of 63679911 is 11997636.

It is a cyclic number.

It is not a de Polignac number, because 63679911 - 2⁵ = 63679879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63679919) 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 15 ways as a sum of consecutive naturals, for example, 26425 + ... + 28733.

It is an arithmetic number, because the mean of its divisors is an integer number (5509350).

Almost surely, 2^63679911 is an apocalyptic number.

63679911 is a deficient number, since it is larger than the sum of its proper divisors (24469689).

63679911 is a wasteful number, since it uses less digits than its factorization.

63679911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658.

The product of its digits is 61236, while the sum is 42.

The square root of 63679911 is about 7979.9693608434. The cubic root of 63679911 is about 399.3320330881.

The spelling of 63679911 in words is "sixty-three million, six hundred seventy-nine thousand, nine hundred eleven".