678103694 has 32 divisors (see below), whose sum is σ = 1078056000. Its totient is φ = 319415040.

The previous prime is 678103691. The next prime is 678103721. The reversal of 678103694 is 496301876.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678103691) 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 15 ways as a sum of consecutive naturals, for example, 484007 + ... + 485405.

It is an arithmetic number, because the mean of its divisors is an integer number (33689250).

Almost surely, 2^678103694 is an apocalyptic number.

678103694 is a deficient number, since it is larger than the sum of its proper divisors (399952306).

678103694 is a wasteful number, since it uses less digits than its factorization.

678103694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 678103694 is about 26040.4242284952. The cubic root of 678103694 is about 878.5477484554.

The spelling of 678103694 in words is "six hundred seventy-eight million, one hundred three thousand, six hundred ninety-four".