63808867 has 4 divisors (see below), whose sum is σ = 64854976. Its totient is φ = 62762760.

The previous prime is 63808841. The next prime is 63808879. The reversal of 63808867 is 76880836.

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 63808867 - 2¹⁵ = 63776099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63808067) 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, 522963 + ... + 523084.

It is an arithmetic number, because the mean of its divisors is an integer number (16213744).

Almost surely, 2^63808867 is an apocalyptic number.

63808867 is a deficient number, since it is larger than the sum of its proper divisors (1046109).

63808867 is a wasteful number, since it uses less digits than its factorization.

63808867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046108.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 63808867 is about 7988.0452552549. The cubic root of 63808867 is about 399.6014091954.

The spelling of 63808867 in words is "sixty-three million, eight hundred eight thousand, eight hundred sixty-seven".