678043270 has 16 divisors (see below), whose sum is σ = 1224458928. Its totient is φ = 270332640.

The previous prime is 678043259. The next prime is 678043273. The reversal of 678043270 is 72340876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678043273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107361 + ... + 113500.

It is an arithmetic number, because the mean of its divisors is an integer number (76528683).

Almost surely, 2^678043270 is an apocalyptic number.

678043270 is a deficient number, since it is larger than the sum of its proper divisors (546415658).

678043270 is a wasteful number, since it uses less digits than its factorization.

678043270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221175.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 678043270 is about 26039.2640064960. The cubic root of 678043270 is about 878.5216526697.

The spelling of 678043270 in words is "six hundred seventy-eight million, forty-three thousand, two hundred seventy".