678673301 has 2 divisors, whose sum is σ = 678673302. Its totient is φ = 678673300.

The previous prime is 678673241. The next prime is 678673363. The reversal of 678673301 is 103376876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413146276 + 265527025 = 20326^2 + 16295^2 .

It is a cyclic number.

It is not a de Polignac number, because 678673301 - 2¹⁰ = 678672277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678673001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339336650 + 339336651.

It is an arithmetic number, because the mean of its divisors is an integer number (339336651).

Almost surely, 2^678673301 is an apocalyptic number.

It is an amenable number.

678673301 is a deficient number, since it is larger than the sum of its proper divisors (1).

678673301 is an equidigital number, since it uses as much as digits as its factorization.

678673301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 678673301 is about 26051.3589088938. The cubic root of 678673301 is about 878.7936729345.

The spelling of 678673301 in words is "six hundred seventy-eight million, six hundred seventy-three thousand, three hundred one".