678266682 has 32 divisors (see below), whose sum is σ = 1387183104. Its totient is φ = 220993200.

The previous prime is 678266669. The next prime is 678266683. The reversal of 678266682 is 286662876.

It is a happy number.

678266682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×678266682² = 920091383822578248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (678266683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430957 + ... + 432527.

It is an arithmetic number, because the mean of its divisors is an integer number (43349472).

Almost surely, 2^678266682 is an apocalyptic number.

678266682 is an abundant number, since it is smaller than the sum of its proper divisors (708916422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678266682 is a wasteful number, since it uses less digits than its factorization.

678266682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154.

The product of its digits is 2322432, while the sum is 51.

The square root of 678266682 is about 26043.5535593743. The cubic root of 678266682 is about 878.6181316287.

The spelling of 678266682 in words is "six hundred seventy-eight million, two hundred sixty-six thousand, six hundred eighty-two".