63868099 has 4 divisors (see below), whose sum is σ = 67625064. Its totient is φ = 60111136.

The previous prime is 63868097. The next prime is 63868111. The reversal of 63868099 is 99086836.

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 63868099 - 2¹ = 63868097 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63868093) 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, 1878457 + ... + 1878490.

It is an arithmetic number, because the mean of its divisors is an integer number (16906266).

Almost surely, 2^63868099 is an apocalyptic number.

63868099 is a deficient number, since it is larger than the sum of its proper divisors (3756965).

63868099 is a wasteful number, since it uses less digits than its factorization.

63868099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756964.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 63868099 is about 7991.7519355896. The cubic root of 63868099 is about 399.7250172545.

The spelling of 63868099 in words is "sixty-three million, eight hundred sixty-eight thousand, ninety-nine".