678252212 has 12 divisors (see below), whose sum is σ = 1294845216. Its totient is φ = 308296440.

The previous prime is 678252199. The next prime is 678252251. The reversal of 678252212 is 212252876.

678252212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7707368 + ... + 7707455.

It is an arithmetic number, because the mean of its divisors is an integer number (107903768).

Almost surely, 2^678252212 is an apocalyptic number.

It is an amenable number.

678252212 is a deficient number, since it is larger than the sum of its proper divisors (616593004).

678252212 is a wasteful number, since it uses less digits than its factorization.

678252212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15414838 (or 15414836 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 678252212 is about 26043.2757540214. The cubic root of 678252212 is about 878.6118834989.

The spelling of 678252212 in words is "six hundred seventy-eight million, two hundred fifty-two thousand, two hundred twelve".