68424863 has 4 divisors (see below), whose sum is σ = 73688328. Its totient is φ = 63161400.

The previous prime is 68424821. The next prime is 68424883. The reversal of 68424863 is 36842486.

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 68424863 - 2⁶ = 68424799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68424863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68424883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2631713 + ... + 2631738.

It is an arithmetic number, because the mean of its divisors is an integer number (18422082).

Almost surely, 2^68424863 is an apocalyptic number.

68424863 is a deficient number, since it is larger than the sum of its proper divisors (5263465).

68424863 is a wasteful number, since it uses less digits than its factorization.

68424863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263464.

The product of its digits is 221184, while the sum is 41.

The square root of 68424863 is about 8271.9322410184. The cubic root of 68424863 is about 409.0138166035.

The spelling of 68424863 in words is "sixty-eight million, four hundred twenty-four thousand, eight hundred sixty-three".