678546233 has 4 divisors (see below), whose sum is σ = 678604788. Its totient is φ = 678487680.

The previous prime is 678546229. The next prime is 678546283. The reversal of 678546233 is 332645876.

678546233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 496754944 + 181791289 = 22288^2 + 13483^2 .

It is a cyclic number.

It is not a de Polignac number, because 678546233 - 2² = 678546229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678546203) 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, 5408 + ... + 37233.

It is an arithmetic number, because the mean of its divisors is an integer number (169651197).

Almost surely, 2^678546233 is an apocalyptic number.

It is an amenable number.

678546233 is a deficient number, since it is larger than the sum of its proper divisors (58555).

678546233 is a wasteful number, since it uses less digits than its factorization.

678546233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58554.

The product of its digits is 725760, while the sum is 44.

The square root of 678546233 is about 26048.9199968060. The cubic root of 678546233 is about 878.7388239991.

The spelling of 678546233 in words is "six hundred seventy-eight million, five hundred forty-six thousand, two hundred thirty-three".