678834299 has 24 divisors (see below), whose sum is σ = 844142400. Its totient is φ = 539641440.

The previous prime is 678834283. The next prime is 678834307. The reversal of 678834299 is 992438876.

It is a happy number.

678834299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 678834299 - 2⁴ = 678834283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678834209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25712 + ... + 44930.

It is an arithmetic number, because the mean of its divisors is an integer number (35172600).

Almost surely, 2^678834299 is an apocalyptic number.

678834299 is a deficient number, since it is larger than the sum of its proper divisors (165308101).

678834299 is a wasteful number, since it uses less digits than its factorization.

678834299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19275 (or 19262 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The square root of 678834299 is about 26054.4487372118. The cubic root of 678834299 is about 878.8631579318.

The spelling of 678834299 in words is "six hundred seventy-eight million, eight hundred thirty-four thousand, two hundred ninety-nine".