678244763 has 8 divisors (see below), whose sum is σ = 789762528. Its totient is φ = 570383424.

The previous prime is 678244751. The next prime is 678244781. The reversal of 678244763 is 367442876.

678244763 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 678244763 - 2¹⁰ = 678243739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678244163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913706 + ... + 914447.

It is an arithmetic number, because the mean of its divisors is an integer number (98720316).

Almost surely, 2^678244763 is an apocalyptic number.

678244763 is a deficient number, since it is larger than the sum of its proper divisors (111517765).

678244763 is a wasteful number, since it uses less digits than its factorization.

678244763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828213.

The product of its digits is 1354752, while the sum is 47.

The square root of 678244763 is about 26043.1327416653. The cubic root of 678244763 is about 878.6086669944.

The spelling of 678244763 in words is "six hundred seventy-eight million, two hundred forty-four thousand, seven hundred sixty-three".