678603203 has 2 divisors, whose sum is σ = 678603204. Its totient is φ = 678603202.

The previous prime is 678603197. The next prime is 678603217. The reversal of 678603203 is 302306876.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 678603203 - 2¹⁶ = 678537667 is a prime.

It is not a weakly prime, because it can be changed into another prime (678603503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339301601 + 339301602.

It is an arithmetic number, because the mean of its divisors is an integer number (339301602).

Almost surely, 2^678603203 is an apocalyptic number.

678603203 is a deficient number, since it is larger than the sum of its proper divisors (1).

678603203 is an equidigital number, since it uses as much as digits as its factorization.

678603203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 678603203 is about 26050.0134932787. The cubic root of 678603203 is about 878.7634159612.

The spelling of 678603203 in words is "six hundred seventy-eight million, six hundred three thousand, two hundred three".