63804863 has 2 divisors, whose sum is σ = 63804864. Its totient is φ = 63804862.

The previous prime is 63804833. The next prime is 63804877. The reversal of 63804863 is 36840836.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63804863 - 2⁶ = 63804799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63804833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31902431 + 31902432.

It is an arithmetic number, because the mean of its divisors is an integer number (31902432).

Almost surely, 2^63804863 is an apocalyptic number.

63804863 is a deficient number, since it is larger than the sum of its proper divisors (1).

63804863 is an equidigital number, since it uses as much as digits as its factorization.

63804863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 63804863 is about 7987.7946268041. The cubic root of 63804863 is about 399.5930507044.

The spelling of 63804863 in words is "sixty-three million, eight hundred four thousand, eight hundred sixty-three".