678394116 has 45 divisors (see below), whose sum is σ = 1774682679. Its totient is φ = 225975096.

The previous prime is 678394103. The next prime is 678394127. The reversal of 678394116 is 611493876.

It is a happy number.

The square root of 678394116 is 26046.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 468105 + ... + 469551.

Almost surely, 2^678394116 is an apocalyptic number.

678394116 is the 26046-th square number.

It is an amenable number.

678394116 is an abundant number, since it is smaller than the sum of its proper divisors (1096288563).

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

678394116 is an equidigital number, since it uses as much as digits as its factorization.

678394116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910 (or 1452 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The cubic root of 678394116 is about 878.6731536501.

The spelling of 678394116 in words is "six hundred seventy-eight million, three hundred ninety-four thousand, one hundred sixteen".