63868363 has 4 divisors (see below), whose sum is σ = 68781328. Its totient is φ = 58955400.

The previous prime is 63868351. The next prime is 63868381. The reversal of 63868363 is 36386836.

It is a happy number.

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 63868363 - 2⁵ = 63868331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63868393) 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, 2456463 + ... + 2456488.

It is an arithmetic number, because the mean of its divisors is an integer number (17195332).

Almost surely, 2^63868363 is an apocalyptic number.

63868363 is a deficient number, since it is larger than the sum of its proper divisors (4912965).

63868363 is a wasteful number, since it uses less digits than its factorization.

63868363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4912964.

The product of its digits is 373248, while the sum is 43.

The square root of 63868363 is about 7991.7684526017. The cubic root of 63868363 is about 399.7255680108.

The spelling of 63868363 in words is "sixty-three million, eight hundred sixty-eight thousand, three hundred sixty-three".