678022746 has 16 divisors (see below), whose sum is σ = 1381631904. Its totient is φ = 221743184.

The previous prime is 678022711. The next prime is 678022757. The reversal of 678022746 is 647220876.

678022746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 678022698 and 678022707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065756 + ... + 1066391.

It is an arithmetic number, because the mean of its divisors is an integer number (86351994).

Almost surely, 2^678022746 is an apocalyptic number.

678022746 is an abundant number, since it is smaller than the sum of its proper divisors (703609158).

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

678022746 is a wasteful number, since it uses less digits than its factorization.

678022746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132205.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 678022746 is about 26038.8699063535. The cubic root of 678022746 is about 878.5127884565.

The spelling of 678022746 in words is "six hundred seventy-eight million, twenty-two thousand, seven hundred forty-six".