63986167 has 12 divisors (see below), whose sum is σ = 77181456. Its totient is φ = 51956640.

The previous prime is 63986159. The next prime is 63986171. The reversal of 63986167 is 76168936.

It is not a de Polignac number, because 63986167 - 2³ = 63986159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63986467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10134 + ... + 15187.

It is an arithmetic number, because the mean of its divisors is an integer number (6431788).

Almost surely, 2^63986167 is an apocalyptic number.

63986167 is a deficient number, since it is larger than the sum of its proper divisors (13195289).

63986167 is a wasteful number, since it uses less digits than its factorization.

63986167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25366 (or 25347 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 63986167 is about 7999.1353907782. The cubic root of 63986167 is about 399.9711791734.

The spelling of 63986167 in words is "sixty-three million, nine hundred eighty-six thousand, one hundred sixty-seven".